Fixes #25
Fixes #63
Remove unused import
Merge remote-tracking branch 'origin/master' into issue_40

Conflicts:
	ged-core/src/main/java/com/simple/ged/plugins/PluginManager.java
	ged-core/src/main/java/com/simple/ged/services/GedDocumentService.java
	ged-core/src/main/java/com/simple/ged/ui/widgets/LibraryView.java
	ged-core/src/test/java/com/simple/ged/services/GedDocumentServiceTest.java