Fixed top shortcut buttons being disabled in the Topics and Content Spec views when they shouldn't have been.

Conflicts:
	src/main/java/org/jboss/pressgang/ccms/ui/client/local/constants/Constants.java
Merge branch 'devel' of github.com:pressgang-ccms/PressGangCCMSUI into devel

Conflicts:
	src/main/java/org/jboss/pressgang/ccms/ui/client/local/constants/Constants.java
Fixed a race condition where getting the server settings could take a long time which would result in NPE outside of the callback.
Fixed a bug in the TopicHistoryView caused by the partial work of BZ#1097477 - RFE: List topics with similar content in ui, and allow content to be updated in diff view.
PressGang 1.6 Release
Started PressGang 1.7 Release