* remove some classnames
* corrects and updates add-to and remove-from cart buttons
* adds corresponding SCSS according to new file structure
* corrects class and adds alphabrowse in footer
* updates header theme button
* clarifies comment in checkbox.phtml
* upgrade footer, header
* upgrade /ajax/
* upgrade /cart
* upgrade /collection/
* upgrade /ContentBlock/
* upgrade /Helpers/
* upgrade /layout/
* upgrade /librarycards/
* upgrade /myresearch/
* upgrade /record/
* upgrade /RecordDriver/DefaultRecord/
* upgrade /RecordDriver/RecordTab/
* upgrade /RecordDriver/search/advanced/
* upgrade /RecordDriver/search/controls/
* upgrade fix bug in single-facet
* upgrade /search/

co-authored by: Claas Kazzer <kazzer@uni-leipzig.de>
* corrects short php tags, clarifies search-history and facets
* upgrade-related post-fixes
* corrects code in finc-acc. for upgrade

* but try to set focus on first focusable element on tab pane

* define hierarchy tree tab as ajax-loadable
* fix: set aria-controls for ajax tabs just-in-time to avoid reference of aria to unloaded tab-content, also #19938

* adds initial changes to initially active tab in view.phtml
* cleans up previous misses
* set aria-selected for tab control on initial load
* add sr-only hint on control tabs
* info that content has to be loaded by click / enter
* reverts changes to using li + a

co-authored by: Robert Lange <robert.lange@uni-leipzig.de>
* set aria-hidden for tab content
* use active tab text for aria-labelledby on first load without ajax
* copy record.js from bootstrap
** set aria-selected tab controls by jquery
** add role and aria-label to new tab pane in record.js::getNewRecordTab
** only set value for aria-controls onload in view.phtml for active tab
** set value for aria-controls when tab is clicked / tab loaded by ajax
** add focus on content after click on control
** info that content has to be loaded by click / enter

* remove console log from bootstrap-accessibility-en.min.js

- Fix autocomplete bug.
- Fix context binding for record comment controls.
- Fix context typo.
- Parameter override fix.

- Make all JSON responses into keyed arrays so that they can be e.g. extended without breaking compatibility.
- Get rid of the redundant status field in the responses in favor of HTTP status codes.

- Added some additional classes to enable improved styling of tabs via CSS.
- Improved variable naming in template
- Moved to using a data- attribute to identify record tabs.

- Fix library card selection in holdings screen when the tab is loaded asynchronously.
- Fix username comparison to be case-insensitive.

- Fix library card selection in holdings screen when the tab is loaded asynchronously.
- Fix username comparison to be case-insensitive.

* Use the .always method to handle record tab ajax loading so that also tabs that fail to load properly are displayed.

* Fixed a code style issue.

- Use form="id" attribute to simplify form markup
- Includes polyfill for legacy browsers

- Fix a problem where ajaxLoadTab fails to load a tab when the domain name begins with the VuFind path (e.g. http://vufind2.local/vufind2/Record/something). 

- Load Google library once per page, instead of once per Captcha
- Allows proper functioning of multiple embedded ReCaptchas in a single set of search results

Conflicts:
	themes/bootstrap3/js/cart.js
	themes/bootstrap3/js/lightbox.js

Conflicts:
	themes/bootstrap3/js/cart.js
	themes/bootstrap3/js/lightbox.js
	themes/bootstrap3/js/openurl.js

Conflicts:
	themes/bootstrap3/js/lightbox.js