add docs
[NEXUS-6817] upgrade to extjs 4.2.3, drop custom hacks which should be fixed with this version
Merge branch 'master' into NEXUS-6796-show-outreach-ifloaded

Conflicts:
	plugins/rapture/nexus-rapture-baseapp/src/main/resources/static/rapture/baseapp-debug.js
	plugins/rapture/nexus-rapture-baseapp/src/main/resources/static/rapture/baseapp-prod.js