Merge branch 'development' into ava
Basic options for Booksite CATS
Booksite config and code for cover images
apikey not key
Internalized Review fetching for Booksite CATS

Note expanded logging capability for the class
Created mechanism for setting up SSL and other HTTP options.
Resolves VUFIND-853.
Style fixes.
Pazpar2 module (resolves VUFIND-122).
Improved comments.
Added partial Danish translation (thanks to Thomas Schwaerzler).
Polaris driver and config, squashed
Removed unnecessary sudo calls; postinst should already run as root.
Thanks to Thomas Schwaerzler for pointing this out.
Resolving VUFIND-858 (Solr QueryBuilder inappropriately strips boosts).
Includes unit tests.
Aleph driver improvements courtesy of Vaclav Rosecky:
- removed dependency on curl library by using HttpServiceAwareInterface
- logging using LoggerAwareInterface
- deprecated function split replaced by explode
- implementation of getDefaultPickUpLocation method
- use of DateTime class for parsing dates
Removed unused line.
Extra check to avoid sending false to url helper.
Merge branch 'ava' into development
Merge branch 'development' into ava
Expanded Basque translation (thanks to Josu Moreno).
Fixed comment.