- Solr connection failure should trigger a BackendException so the record loader can work around it when in "tolerate backend exceptions" mode.

- Do not create multiple tokens per request.
- Clear tokens after successful verification to save session space.
- Limit the number of tokens that can be generated before successful verification.

- Makes room for large search objects and paging information. 

- Refactor redundant code to base class
- Break SearchActionsTest into smaller parts

- More logical separation of concerns
- Fixes compatibility with Search2 backend

- Fixes Search2 compatibility.

- Fixes compatibility with Search2 backend.

- instanceof Element check was not working as expected.

- Switch to Slick.js as basis for carousels (instead of homegrown library)
- Make user interface more compact and less overwhelming
- Fix right-to-left language support
- Fix problems with popover behavior
- Contain channels Javascript code in the VuFind object for better scoping