Added Solr deduplication support.
- See https://vufind.org/wiki/deduplication
Make it possible to use a relative path in Parent_Config.
One bug fix and one enhancement

Fixed a bug related to new items: daysOld was always defaulting to 30
days because mathematical comparisons with it were always failing;
needed to cast daysOld as an integer before doing mathematical
comparisons with it. Enhancement: changed item status queries to pull
the human-readable location rather than the cryptic location code from
the database.
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 bootstrap holdingsils.phtml to handle call numbers properly (same as blueprint).
Merge pull request #72 from KDK-Alli/bootstrap

Fixed bootstrap holdingsils.phtml to handle call numbers properly (same ...
Fixed bug -- wrong return type.
Style fix.
Adjusted coverage settings.
Change schema.org mapping from MusicRecording to MusicAlbum

http://schema.org/MusicRecording is intended for individual tracks, and
although we cannot be sure with just "Audio", most library systems seem to
catalog at the album level... so switch to MusicAlbum instead.

Signed-off-by: Dan Scott <dan@coffeecode.net>
Merge pull request #73 from dbs/schema_org_musicalbum

Change schema.org mapping from MusicRecording to MusicAlbum
Fixed error status and message reporting for restful request (leftover from VuFind 1).
Merge commit 'd9c8fa64cd7b7bc51f4ddd9d0d46ddd4dcf8dd29' into vufind-master
Fixed lightbox login at least for ChoiceAuth by including auth_method in the JSON request.
Merge pull request #74 from KDK-Alli/auth

Fixed lightbox login at least for ChoiceAuth by including auth_method in...
suspected typo
Merge pull request #75 from TriCollegeLibraries/suspected-typo

suspected typo