Image Magick Thumbnail Creator
Adding license per travis build errors
DS-1858 : Added key to 'Browse Items by:' of navbar in messages.properties
Switch some classes to HttpComponents
Some more httpclient fixes
Last httpcomponents conversion
[DS-1577] Harmonize with DS-2091, catch missing dependency on httpcore.
Default settings for ImageMagick Thumbnail Filters
Migrate LIT filters to IM filter

Per DSpace PR discussions
Clarify messages, improve label checks
Rm LIT files, name change req in DSpace Tech mtg
class rename
Static methods for reuse by curation system
[DS-2112] fix NPE if org.dspace.app.mediafilter.MediaFilterManager.processBitstream is undefined

Also take a few IDE hints to tidy up the region.
Update config comments for filter plugins
Java 7, re-enable getReaderFileSuffixes
DS-1990: Events should contain all identifiers, not only handles.
Fixes typo in a javadoc comment.
Bitstreams should set identfiers to Events as well.
Enhancing the PR for DS-1990.

Adds a cache to the Identifier array in the DSpaceObject class.
Renames the method from lookupIdentifiers into getIdentifiers.