rhbz1066756 - Review fixes and other changes.

i18n of messages.
Remove unneeded pages and classes.
Change the top menu so that 'Settings' is no longer available. It should be now replaced by the dashboard.
rhbz1066756 - Code base cleanup.

Remove a few unnecessary classes.
Repurpose other classes to avoid duplication.
All this in order to get code coverage up.
Merge remote-tracking branch 'origin/rhbz1066756' into rhbz1066756

Conflicts:
	zanata-war/src/main/resources/messages.properties