Translation tweak courtesy of Ere Maijala.
Merge branch 'release-2.3'
Italian translation fix

Fix trasnlation for component/host parts notes.
Merge branch 'release-2.3'
Populate lang attribute.
Smarter array handling in config writer (with tests).
Fix preview links in Bootstrap 3 and other show-hide bugs.
Merge branch 'release-2.3'
Search result preview padding styling.
Merge branch 'release-2.3'
Combined search column configurations.
add a new tab for embedded previews with google books functionality
Link Google preview to thumbnail.
Merge branch 'release-2.3'
Added grid as default mode to prevent PHP warnings in Cover Generator.
Google Preview fix for Bootstrap 2.
Fixed bug: duplicate entries in "recently received" list.
Merge branch 'release-2.3'
Fix Recaptcha error in Lightbox and move advanced title functionality over from Bootstrap 3.
Merge branch 'release-2.3'