core-4760 center loading gif and loading text.
adjust feedback button height.
core-4736 add logic to detect changes while creating wf
core-4736 refactor code to prevent repeat confirmation for save
CORE-4730: Updated copyright and NSF strings to SafeHtml for Belphegor upgrade
CORE-4788: reformatted pom.xml
CORE-4788: updated the Spring Security version and added a build property for it
CORE-4788: added a proxy granting ticket storage cleanup task
Added gwt-unitCache to the cleanup steps
core-4792 fix ref. genome value in view params dialog
CORE-4614: Updates for namespace changes
CORE-4750 Fix AnalysisRpcProxy#onFailure.

Updated AnalysisRpcProxy#onFailure to display a message for the user, and to call its callback's onFailure method so that errors don't leave the paging grid stuck in a loading state.