Removing dependency to GXT 225
CORE-4727: Removed GXT folders from war dir.
CORE-4667, CORE-4716: 
* Moved system message related autobeans to ui-commons
* Moved tool request autobeans to ui-applications
core-4714 fix notification created date sorting issue
core-4747 fix values for save param as file
Updated discoveryenvironment-example.properties for v1.8.2
core-4680 make simple uploads non modal.
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/de-webapp
core-4760 add loading gif to DE.
core-4736 added logic to prompt save on close
core-4736 fix npe when creating new wf.
CORE-4727: Removed jsp ref to old GXT styles.
Updated gwt.xml to pull in the new GXT styles per their preferred
method.
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/de-webapp
CORE-4617 Refactored email to full_username in TemplateServiceFacade.

Updated the TemplateServiceFacade#deleteAppFromWorkspace to submit the 'full_username' field in its JSON request, rather than 'email', to convey the actual intent of this field's value.
The service endpoint looks for the username in either field, and since this client is sending the full username, this JSON field should match, especially since a user may have a different email than their fully qualified username.
core-4760 add loading gif.
core-4760 refactor code.
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/de-webapp
core-4760 center loading gif and loading text.
adjust feedback button height.
core-4736 add logic to detect changes while creating wf