CS-4863: Added missing getters and setters
CS-4862: Added field for language codes based on RFC 3066BIS standard.
CS-4862: Added comments to language entity
CS-4862: Fixed some small issues

- Added RFC language codes also campsite_core.sql
- Fixed Arabic, Korean and default English codes
Merge remote-tracking branch 'upstream/master' into newscoop-v4.3
Merge branch 'CS-4863' into newscoop-v4.3
Merge remote-tracking branch 'upstream/master' into newscoop-v4.3
Merge remote-tracking branch 'upstream/master' into newscoop-v4.3
Merge branch 'CS-4873' into newscoop-v4.3
Merge branch 'CS-4863' into newscoop-v4.3
Merge remote-tracking branch 'upstream/master' into newscoop-v4.3
Merge remote-tracking branch 'upstream/master' into newscoop-v4.3
CS-4880: Completes Comment entity and service  - needed for WOBS-2978
CS-4880: Adds Attachment entity and repository - needed for WOBS-2978
Merge branch 'CS-4880' into newscoop-v4.3
Merge remote-tracking branch 'upstream/master' into newscoop-v4.3
Merge branch 'CS-4863' into newscoop-v4.3
Merge remote-tracking branch 'upstream/master'

Conflicts:
	newscoop/library/Newscoop/Entity/Attachment.php
	newscoop/library/Newscoop/Entity/Comment.php
	newscoop/library/Newscoop/Entity/Repository/AttachmentRepository.php
	newscoop/library/Newscoop/Services/CommentService.php
CS-4863: Removes ingest features from core that have been moved to plugin
Merge remote-tracking branch 'upstream/master'