merged source querying into the SourceComponent class for common handling
Merge branch 'develop'
removing own SKOS controller and using a common controller with different views for formats
error handling for input parameters
SKOS controller function sends correct header
added views for metadata and response in SKOS
xml prefix
xml prefix
SKOS based metadata description
Merge branch 'develop'

Conflicts:
	protected/controllers/JSONCommonNamesController.php