Upgrade to Bootstrap v3.4.0 (#1300)

themes/bootstrap3/less/vendor/bootstrap/alerts.less

@@ -15,8 +15,7 @@
   // Headings for larger alerts
   h4 {
     margin-top: 0;
-    // Specified for the h4 to prevent conflicts of changing @headings-color
-    color: inherit;
+    color: inherit; // Specified for the h4 to prevent conflicts of changing @headings-color
   }
 
   // Provide class for links that match alerts
@@ -39,7 +38,8 @@
 //
 // Expand the right padding and account for the close button's positioning.
 
-.alert-dismissable, // The misspelled .alert-dismissable was deprecated in 3.2.0.
+// The misspelled .alert-dismissable was deprecated in 3.2.0.
+.alert-dismissable,
 .alert-dismissible {
   padding-right: (@alert-padding + 20);
 

themes/bootstrap3/less/vendor/bootstrap/badges.less

@@ -10,11 +10,11 @@
   padding: 3px 7px;
   font-size: @font-size-small;
   font-weight: @badge-font-weight;
-  color: @badge-color;
   line-height: @badge-line-height;
-  vertical-align: middle;
-  white-space: nowrap;
+  color: @badge-color;
   text-align: center;
+  white-space: nowrap;
+  vertical-align: middle;
   background-color: @badge-bg;
   border-radius: @badge-border-radius;
 

themes/bootstrap3/less/vendor/bootstrap/bootstrap.less

 /*!
- * Bootstrap v3.3.7 (http://getbootstrap.com)
- * Copyright 2011-2016 Twitter, Inc.
+ * Bootstrap v3.4.0 (https://getbootstrap.com/)
+ * Copyright 2011-2018 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 

themes/bootstrap3/less/vendor/bootstrap/breadcrumbs.less

@@ -14,9 +14,9 @@
     display: inline-block;
 
     + li:before {
-      content: "@{breadcrumb-separator}\00a0"; // Unicode space added since inline-block means non-collapsing white-space
       padding: 0 5px;
       color: @breadcrumb-color;
+      content: "@{breadcrumb-separator}\00a0"; // Unicode space added since inline-block means non-collapsing white-space
     }
   }
 

themes/bootstrap3/less/vendor/bootstrap/button-groups.less

+// stylelint-disable selector-no-qualifying-type */
+
 //
 // Button groups
 // --------------------------------------------------
@@ -103,18 +105,18 @@
 
 // Give the line between buttons some depth
 .btn-group > .btn + .dropdown-toggle {
-  padding-left: 8px;
   padding-right: 8px;
+  padding-left: 8px;
 }
 .btn-group > .btn-lg + .dropdown-toggle {
-  padding-left: 12px;
   padding-right: 12px;
+  padding-left: 12px;
 }
 
 // The clickable button for toggling the menu
 // Remove the gradient and set the same inset shadow as the :active state
 .btn-group.open .dropdown-toggle {
-  .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
+  .box-shadow(inset 0 3px 5px rgba(0, 0, 0, .125));
 
   // Show no shadow for `.btn-link` since it has no other button styles.
   &.btn-link {
@@ -205,8 +207,8 @@
   border-collapse: separate;
   > .btn,
   > .btn-group {
-    float: none;
     display: table-cell;
+    float: none;
     width: 1%;
   }
   > .btn-group .btn {
@@ -237,7 +239,7 @@
     input[type="radio"],
     input[type="checkbox"] {
       position: absolute;
-      clip: rect(0,0,0,0);
+      clip: rect(0, 0, 0, 0);
       pointer-events: none;
     }
   }

themes/bootstrap3/less/vendor/bootstrap/buttons.less

+// stylelint-disable selector-no-qualifying-type
+
 //
 // Buttons
 // --------------------------------------------------
@@ -11,12 +13,12 @@
   margin-bottom: 0; // For input.btn
   font-weight: @btn-font-weight;
   text-align: center;
+  white-space: nowrap;
   vertical-align: middle;
   touch-action: manipulation;
   cursor: pointer;
   background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
   border: 1px solid transparent;
-  white-space: nowrap;
   .button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @btn-border-radius-base);
   .user-select(none);
 
@@ -38,9 +40,9 @@
 
   &:active,
   &.active {
-    outline: 0;
     background-image: none;
-    .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
+    outline: 0;
+    .box-shadow(inset 0 3px 5px rgba(0, 0, 0, .125));
   }
 
   &.disabled,
@@ -92,8 +94,8 @@
 
 // Make a button look and behave like a link
 .btn-link {
+  font-weight: 400;
   color: @link-color;
-  font-weight: normal;
   border-radius: 0;
 
   &,

themes/bootstrap3/less/vendor/bootstrap/carousel.less

+// stylelint-disable media-feature-name-no-unknown
+
 //
 // Carousel
 // --------------------------------------------------
@@ -10,12 +12,12 @@
 
 .carousel-inner {
   position: relative;
-  overflow: hidden;
   width: 100%;
+  overflow: hidden;
 
   > .item {
-    display: none;
     position: relative;
+    display: none;
     .transition(.6s ease-in-out left);
 
     // Account for jankitude on images
@@ -27,8 +29,8 @@
 
     // WebKit CSS3 transforms for supported devices
     @media all and (transform-3d), (-webkit-transform-3d) {
-      .transition-transform(~'0.6s ease-in-out');
-      .backface-visibility(~'hidden');
+      .transition-transform(~"0.6s ease-in-out");
+      .backface-visibility(~"hidden");
       .perspective(1000px);
 
       &.next,
@@ -93,34 +95,34 @@
 .carousel-control {
   position: absolute;
   top: 0;
-  left: 0;
   bottom: 0;
+  left: 0;
   width: @carousel-control-width;
-  .opacity(@carousel-control-opacity);
   font-size: @carousel-control-font-size;
   color: @carousel-control-color;
   text-align: center;
   text-shadow: @carousel-text-shadow;
   background-color: rgba(0, 0, 0, 0); // Fix IE9 click-thru bug
+  .opacity(@carousel-control-opacity);
   // We can't have this transition here because WebKit cancels the carousel
   // animation if you trip this while in the middle of another animation.
 
   // Set gradients for backgrounds
   &.left {
-    #gradient > .horizontal(@start-color: rgba(0,0,0,.5); @end-color: rgba(0,0,0,.0001));
+    #gradient > .horizontal(@start-color: rgba(0, 0, 0, .5); @end-color: rgba(0, 0, 0, .0001));
   }
   &.right {
-    left: auto;
     right: 0;
-    #gradient > .horizontal(@start-color: rgba(0,0,0,.0001); @end-color: rgba(0,0,0,.5));
+    left: auto;
+    #gradient > .horizontal(@start-color: rgba(0, 0, 0, .0001); @end-color: rgba(0, 0, 0, .5));
   }
 
   // Hover/focus state
   &:hover,
   &:focus {
-    outline: 0;
     color: @carousel-control-color;
     text-decoration: none;
+    outline: 0;
     .opacity(.9);
   }
 
@@ -131,9 +133,9 @@
   .glyphicon-chevron-right {
     position: absolute;
     top: 50%;
-    margin-top: -10px;
     z-index: 5;
     display: inline-block;
+    margin-top: -10px;
   }
   .icon-prev,
   .glyphicon-chevron-left {
@@ -147,21 +149,20 @@
   }
   .icon-prev,
   .icon-next {
-    width:  20px;
+    width: 20px;
     height: 20px;
-    line-height: 1;
     font-family: serif;
+    line-height: 1;
   }
 
-
   .icon-prev {
     &:before {
-      content: '\2039';// SINGLE LEFT-POINTING ANGLE QUOTATION MARK (U+2039)
+      content: "\2039";// SINGLE LEFT-POINTING ANGLE QUOTATION MARK (U+2039)
     }
   }
   .icon-next {
     &:before {
-      content: '\203a';// SINGLE RIGHT-POINTING ANGLE QUOTATION MARK (U+203A)
+      content: "\203a";// SINGLE RIGHT-POINTING ANGLE QUOTATION MARK (U+203A)
     }
   }
 }
@@ -177,21 +178,18 @@
   left: 50%;
   z-index: 15;
   width: 60%;
-  margin-left: -30%;
   padding-left: 0;
-  list-style: none;
+  margin-left: -30%;
   text-align: center;
+  list-style: none;
 
   li {
     display: inline-block;
-    width:  10px;
+    width: 10px;
     height: 10px;
     margin: 1px;
     text-indent: -999px;
-    border: 1px solid @carousel-indicator-border-color;
-    border-radius: 10px;
     cursor: pointer;
-
     // IE8-9 hack for event handling
     //
     // Internet Explorer 8-9 does not support clicks on elements without a set
@@ -202,12 +200,16 @@
     // For IE8, we set solid black as it doesn't support `rgba()`. For IE9, we
     // set alpha transparency for the best results possible.
     background-color: #000 \9; // IE8
-    background-color: rgba(0,0,0,0); // IE9
+    background-color: rgba(0, 0, 0, 0); // IE9
+
+    border: 1px solid @carousel-indicator-border-color;
+    border-radius: 10px;
   }
+
   .active {
-    margin: 0;
-    width:  12px;
+    width: 12px;
     height: 12px;
+    margin: 0;
     background-color: @carousel-indicator-active-bg;
   }
 }
@@ -217,15 +219,16 @@
 // Hidden by default for smaller viewports
 .carousel-caption {
   position: absolute;
-  left: 15%;
   right: 15%;
   bottom: 20px;
+  left: 15%;
   z-index: 10;
   padding-top: 20px;
   padding-bottom: 20px;
   color: @carousel-caption-color;
   text-align: center;
   text-shadow: @carousel-text-shadow;
+
   & .btn {
     text-shadow: none; // No shadow for button elements in carousel-caption
   }
@@ -258,8 +261,8 @@
 
   // Show and left align the captions
   .carousel-caption {
-    left: 20%;
     right: 20%;
+    left: 20%;
     padding-bottom: 30px;
   }
 

themes/bootstrap3/less/vendor/bootstrap/close.less

+// stylelint-disable property-no-vendor-prefix
+
 //
 // Close icons
 // --------------------------------------------------
@@ -30,5 +32,6 @@
     background: transparent;
     border: 0;
     -webkit-appearance: none;
+    appearance: none;
   }
 }

themes/bootstrap3/less/vendor/bootstrap/code.less

@@ -27,12 +27,12 @@ kbd {
   color: @kbd-color;
   background-color: @kbd-bg;
   border-radius: @border-radius-small;
-  box-shadow: inset 0 -1px 0 rgba(0,0,0,.25);
+  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .25);
 
   kbd {
     padding: 0;
     font-size: 100%;
-    font-weight: bold;
+    font-weight: 700;
     box-shadow: none;
   }
 }
@@ -44,9 +44,9 @@ pre {
   margin: 0 0 (@line-height-computed / 2);
   font-size: (@font-size-base - 1); // 14px to 13px
   line-height: @line-height-base;
+  color: @pre-color;
   word-break: break-all;
   word-wrap: break-word;
-  color: @pre-color;
   background-color: @pre-bg;
   border: 1px solid @pre-border-color;
   border-radius: @border-radius-base;

themes/bootstrap3/less/vendor/bootstrap/component-animations.less

+// stylelint-disable selector-no-qualifying-type
+
 //
 // Component animations
 // --------------------------------------------------
@@ -10,6 +12,7 @@
 .fade {
   opacity: 0;
   .transition(opacity .15s linear);
+
   &.in {
     opacity: 1;
   }

themes/bootstrap3/less/vendor/bootstrap/dropdowns.less

@@ -10,10 +10,10 @@
   height: 0;
   margin-left: 2px;
   vertical-align: middle;
-  border-top:   @caret-width-base dashed;
-  border-top:   @caret-width-base solid ~"\9"; // IE8
+  border-top: @caret-width-base dashed;
+  border-top: @caret-width-base solid ~"\9"; // IE8
   border-right: @caret-width-base solid transparent;
-  border-left:  @caret-width-base solid transparent;
+  border-left: @caret-width-base solid transparent;
 }
 
 // The dropdown wrapper (div)
@@ -38,15 +38,15 @@
   min-width: 160px;
   padding: 5px 0;
   margin: 2px 0 0; // override default ul
-  list-style: none;
   font-size: @font-size-base;
   text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)
+  list-style: none;
   background-color: @dropdown-bg;
+  background-clip: padding-box;
   border: 1px solid @dropdown-fallback-border; // IE8 fallback
   border: 1px solid @dropdown-border;
   border-radius: @border-radius-base;
-  .box-shadow(0 6px 12px rgba(0,0,0,.175));
-  background-clip: padding-box;
+  .box-shadow(0 6px 12px rgba(0, 0, 0, .175));
 
   // Aligns the dropdown menu to right
   //
@@ -66,20 +66,17 @@
     display: block;
     padding: 3px 20px;
     clear: both;
-    font-weight: normal;
+    font-weight: 400;
     line-height: @line-height-base;
     color: @dropdown-link-color;
     white-space: nowrap; // prevent links from randomly breaking onto new lines
-  }
-}
 
-// Hover/Focus state
-.dropdown-menu > li > a {
-  &:hover,
-  &:focus {
-    text-decoration: none;
-    color: @dropdown-link-hover-color;
-    background-color: @dropdown-link-hover-bg;
+    &:hover,
+    &:focus {
+      color: @dropdown-link-hover-color;
+      text-decoration: none;
+      background-color: @dropdown-link-hover-bg;
+    }
   }
 }
 
@@ -90,8 +87,8 @@
   &:focus {
     color: @dropdown-link-active-color;
     text-decoration: none;
-    outline: 0;
     background-color: @dropdown-link-active-bg;
+    outline: 0;
   }
 }
 
@@ -110,10 +107,10 @@
   &:hover,
   &:focus {
     text-decoration: none;
+    cursor: @cursor-disabled;
     background-color: transparent;
     background-image: none; // Remove CSS gradient
     .reset-filter();
-    cursor: @cursor-disabled;
   }
 }
 
@@ -135,8 +132,8 @@
 // Add extra class to `.dropdown-menu` to flip the alignment of the dropdown
 // menu with the parent.
 .dropdown-menu-right {
-  left: auto; // Reset the default from `.dropdown-menu`
   right: 0;
+  left: auto; // Reset the default from `.dropdown-menu`
 }
 // With v3, we enabled auto-flipping if you have a dropdown within a right
 // aligned nav component. To enable the undoing of that, we provide an override
@@ -145,8 +142,8 @@
 // This is only for left-aligning a dropdown menu within a `.navbar-right` or
 // `.pull-right` nav component.
 .dropdown-menu-left {
-  left: 0;
   right: auto;
+  left: 0;
 }
 
 // Dropdown section headers
@@ -162,10 +159,10 @@
 // Backdrop to catch body clicks on mobile, etc.
 .dropdown-backdrop {
   position: fixed;
-  left: 0;
+  top: 0;
   right: 0;
   bottom: 0;
-  top: 0;
+  left: 0;
   z-index: (@zindex-dropdown - 10);
 }
 
@@ -184,10 +181,10 @@
 .navbar-fixed-bottom .dropdown {
   // Reverse the caret
   .caret {
+    content: "";
     border-top: 0;
     border-bottom: @caret-width-base dashed;
     border-bottom: @caret-width-base solid ~"\9"; // IE8
-    content: "";
   }
   // Different positioning for bottom up menu
   .dropdown-menu {

themes/bootstrap3/less/vendor/bootstrap/forms.less

+// stylelint-disable selector-no-qualifying-type, property-no-vendor-prefix, media-feature-name-no-vendor-prefix
+
 //
 // Forms
 // --------------------------------------------------
@@ -8,13 +10,13 @@
 // Restyle and baseline non-control form elements.
 
 fieldset {
-  padding: 0;
-  margin: 0;
-  border: 0;
   // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
   // so we reset that to ensure it behaves more like a standard block element.
   // See https://github.com/twbs/bootstrap/issues/12359.
   min-width: 0;
+  padding: 0;
+  margin: 0;
+  border: 0;
 }
 
 legend {
@@ -33,7 +35,7 @@ label {
   display: inline-block;
   max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141)
   margin-bottom: 5px;
-  font-weight: bold;
+  font-weight: 700;
 }
 
 
@@ -43,9 +45,18 @@ label {
 // is required to ensure optimum display with or without those classes to better
 // address browser inconsistencies.
 
-// Override content-box in Normalize (* isn't specific enough)
 input[type="search"] {
+  // Override content-box in Normalize (* isn't specific enough)
   .box-sizing(border-box);
+
+  // Search inputs in iOS
+  //
+  // This overrides the extra rounded corners on search inputs in iOS so that our
+  // `.form-control` class can properly style them. Note that this cannot simply
+  // be added to `.form-control` as it's not specific enough. For details, see
+  // https://github.com/twbs/bootstrap/issues/11586.
+  -webkit-appearance: none;
+  appearance: none;
 }
 
 // Position radios and checkboxes better
@@ -54,6 +65,16 @@ input[type="checkbox"] {
   margin: 4px 0 0;
   margin-top: 1px \9; // IE8-9
   line-height: normal;
+
+  // Apply same disabled cursor tweak as for inputs
+  // Some special care is needed because <label>s don't inherit their parent's `cursor`.
+  //
+  // Note: Neither radios nor checkboxes can be readonly.
+  &[disabled],
+  &.disabled,
+  fieldset[disabled] & {
+    cursor: @cursor-disabled;
+  }
 }
 
 input[type="file"] {
@@ -123,7 +144,7 @@ output {
   background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
   border: 1px solid @input-border;
   border-radius: @input-border-radius; // Note: This has no effect on <select>s in some browsers, due to the limited stylability of <select>s in CSS.
-  .box-shadow(inset 0 1px 1px rgba(0,0,0,.075));
+  .box-shadow(inset 0 1px 1px rgba(0, 0, 0, .075));
   .transition(~"border-color ease-in-out .15s, box-shadow ease-in-out .15s");
 
   // Customize the `:focus` state to imitate native WebKit styles.
@@ -134,8 +155,8 @@ output {
 
   // Unstyle the caret on `<select>`s in IE10+.
   &::-ms-expand {
-    border: 0;
     background-color: transparent;
+    border: 0;
   }
 
   // Disabled and read-only inputs
@@ -162,18 +183,6 @@ output {
 }
 
 
-// Search inputs in iOS
-//
-// This overrides the extra rounded corners on search inputs in iOS so that our
-// `.form-control` class can properly style them. Note that this cannot simply
-// be added to `.form-control` as it's not specific enough. For details, see
-// https://github.com/twbs/bootstrap/issues/11586.
-
-input[type="search"] {
-  -webkit-appearance: none;
-}
-
-
 // Special styles for iOS temporal inputs
 //
 // In Mobile Safari, setting `display: block` on temporal inputs causes the
@@ -226,11 +235,19 @@ input[type="search"] {
   margin-top: 10px;
   margin-bottom: 10px;
 
+  // These are used on elements with <label> descendants
+  &.disabled,
+  fieldset[disabled] & {
+    label {
+      cursor: @cursor-disabled;
+    }
+  }
+
   label {
     min-height: @line-height-computed; // Ensure the input doesn't jump when there is no text
     padding-left: 20px;
     margin-bottom: 0;
-    font-weight: normal;
+    font-weight: 400;
     cursor: pointer;
   }
 }
@@ -239,8 +256,8 @@ input[type="search"] {
 .checkbox input[type="checkbox"],
 .checkbox-inline input[type="checkbox"] {
   position: absolute;
-  margin-left: -20px;
   margin-top: 4px \9;
+  margin-left: -20px;
 }
 
 .radio + .radio,
@@ -255,45 +272,20 @@ input[type="search"] {
   display: inline-block;
   padding-left: 20px;
   margin-bottom: 0;
+  font-weight: 400;
   vertical-align: middle;
-  font-weight: normal;
   cursor: pointer;
-}
-.radio-inline + .radio-inline,
-.checkbox-inline + .checkbox-inline {
-  margin-top: 0;
-  margin-left: 10px; // space out consecutive inline controls
-}
 
-// Apply same disabled cursor tweak as for inputs
-// Some special care is needed because <label>s don't inherit their parent's `cursor`.
-//
-// Note: Neither radios nor checkboxes can be readonly.
-input[type="radio"],
-input[type="checkbox"] {
-  &[disabled],
+  // These are used directly on <label>s
   &.disabled,
   fieldset[disabled] & {
     cursor: @cursor-disabled;
   }
 }
-// These classes are used directly on <label>s
-.radio-inline,
-.checkbox-inline {
-  &.disabled,
-  fieldset[disabled] & {
-    cursor: @cursor-disabled;
-  }
-}
-// These classes are used on elements with <label> descendants
-.radio,
-.checkbox {
-  &.disabled,
-  fieldset[disabled] & {
-    label {
-      cursor: @cursor-disabled;
-    }
-  }
+.radio-inline + .radio-inline,
+.checkbox-inline + .checkbox-inline {
+  margin-top: 0;
+  margin-left: 10px; // space out consecutive inline controls
 }
 
 
@@ -303,17 +295,17 @@ input[type="checkbox"] {
 // a horizontal form layout.
 
 .form-control-static {
+  min-height: (@line-height-computed + @font-size-base);
   // Size it appropriately next to real form controls
   padding-top: (@padding-base-vertical + 1);
   padding-bottom: (@padding-base-vertical + 1);
   // Remove default margin from `p`
   margin-bottom: 0;
-  min-height: (@line-height-computed + @font-size-base);
 
   &.input-lg,
   &.input-sm {
-    padding-left: 0;
     padding-right: 0;
+    padding-left: 0;
   }
 }
 
@@ -556,9 +548,9 @@ input[type="checkbox"] {
   .checkbox,
   .radio-inline,
   .checkbox-inline {
+    padding-top: (@padding-base-vertical + 1); // Default padding plus a border
     margin-top: 0;
     margin-bottom: 0;
-    padding-top: (@padding-base-vertical + 1); // Default padding plus a border
   }
   // Account for padding we're adding to ensure the alignment and of help text
   // and other content below items
@@ -576,9 +568,9 @@ input[type="checkbox"] {
   // labels on narrow viewports stack the same as a default form example.
   @media (min-width: @screen-sm-min) {
     .control-label {
-      text-align: right;
-      margin-bottom: 0;
       padding-top: (@padding-base-vertical + 1); // Default padding plus a border
+      margin-bottom: 0;
+      text-align: right;
     }
   }
 

themes/bootstrap3/less/vendor/bootstrap/glyphicons.less

+// stylelint-disable value-list-comma-newline-after, value-list-comma-space-after, indentation, declaration-colon-newline-after, font-family-no-missing-generic-family-keyword
+
 //
 // Glyphicons for Bootstrap
 //
@@ -9,13 +11,13 @@
 
 // Import the fonts
 @font-face {
-  font-family: 'Glyphicons Halflings';
-  src: url('@{icon-font-path}@{icon-font-name}.eot');
-  src: url('@{icon-font-path}@{icon-font-name}.eot?#iefix') format('embedded-opentype'),
-       url('@{icon-font-path}@{icon-font-name}.woff2') format('woff2'),
-       url('@{icon-font-path}@{icon-font-name}.woff') format('woff'),
-       url('@{icon-font-path}@{icon-font-name}.ttf') format('truetype'),
-       url('@{icon-font-path}@{icon-font-name}.svg#@{icon-font-svg-id}') format('svg');
+  font-family: "Glyphicons Halflings";
+  src: url("@{icon-font-path}@{icon-font-name}.eot");
+  src: url("@{icon-font-path}@{icon-font-name}.eot?#iefix") format("embedded-opentype"),
+       url("@{icon-font-path}@{icon-font-name}.woff2") format("woff2"),
+       url("@{icon-font-path}@{icon-font-name}.woff") format("woff"),
+       url("@{icon-font-path}@{icon-font-name}.ttf") format("truetype"),
+       url("@{icon-font-path}@{icon-font-name}.svg#@{icon-font-svg-id}") format("svg");
 }
 
 // Catchall baseclass
@@ -23,9 +25,9 @@
   position: relative;
   top: 1px;
   display: inline-block;
-  font-family: 'Glyphicons Halflings';
+  font-family: "Glyphicons Halflings";
   font-style: normal;
-  font-weight: normal;
+  font-weight: 400;
   line-height: 1;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;

themes/bootstrap3/less/vendor/bootstrap/grid.less

@@ -40,6 +40,16 @@
   .make-row();
 }
 
+.row-no-gutters {
+  margin-right: 0;
+  margin-left: 0;
+
+  [class*="col-"] {
+    padding-right: 0;
+    padding-left: 0;
+  }
+}
+
 
 // Columns
 //

themes/bootstrap3/less/vendor/bootstrap/input-groups.less

+// stylelint-disable selector-no-qualifying-type
+
 //
 // Input groups
 // --------------------------------------------------
@@ -12,8 +14,8 @@
   // Undo padding and float of grid classes
   &[class*="col-"] {
     float: none;
-    padding-left: 0;
     padding-right: 0;
+    padding-left: 0;
   }
 
   .form-control {
@@ -77,7 +79,7 @@
 .input-group-addon {
   padding: @padding-base-vertical @padding-base-horizontal;
   font-size: @font-size-base;
-  font-weight: normal;
+  font-weight: 400;
   line-height: 1;
   color: @input-color;
   text-align: center;