Bootstrap 3 hierarchy tree fix for illegal characters. VUFIND-1025
Added note about API update.
Improved image extraction for some non-English languages.
Consistent, prefixed translation of item locations.
- Resolves VUFIND-1027.
Prevents crash in hierarchy tree generator if an empty collection is parsed.
Merge branch 'release-2.3'. jsTree fixes and util fix.
Changes to styling to prevent hierarchy tree overflow.
Merge branch 'release-2.3'
Moved hierarchy overflow css to bootstrap3 from bootprint3.
Merge branch 'release-2.3'