Added Solr deduplication support.
- See https://vufind.org/wiki/deduplication
Make it possible to use a relative path in Parent_Config.
Improved error and debug logging for MultiBackend driver.
Improved logging of function parameters in exception backtrace.
Improved error and debug logging for Voyager drivers.
Relay record id to checkFunction() so that the backend can return configuration based on the record (e.g. MultiBackend driver can get config from proper backend).
Fixed error status and message reporting for restful request (leftover from VuFind 1).
Merge commit 'd9c8fa64cd7b7bc51f4ddd9d0d46ddd4dcf8dd29' into vufind-master
suspected typo
Merge pull request #75 from TriCollegeLibraries/suspected-typo

suspected typo
Switch sort option to GET rather than POST.
- Resolves VUFIND-947.
Added session database cleanup tools.
- Resolves VUFIND-948.
Implemented MultiILS authentication driver that works with MultiBackend ILS driver allowing selection of login library.
Added MultiILS/loginfields.phtml for blueprint. Added a comment regarding login delimiters to MultiBackend.ini.
Added newline to the end of bootstrap loginfields.phtml.
Minor tweaks to Finnish translation.
Added translation of login_target to en.ini.
Merge pull request #79 from KDK-Alli/translation

Minor tweaks to Finnish translation.
Added cross-reference to config comments.
Updated language file.
- Thanks to Jorge Ramírez.