CORE-4538: Empty argument groups now display instructional text
CORE-1848: Added a large set of contextual help messages
Also externalized a huge set of strings
CORE-1848: Entered more externalized strings for WYSIWYG
CORE-1848: Corrected empty group style issue
This happened when the user drag-reordered a group.
Removed legacy App Json handling.
CORE-4536: Improved styles for WYSIWYG selection
CORE-1848: More I18N string organization
CORE-4536: Implemented contrasted styles upon selection
CORE-4536: Adjust styles to differentiate the hover from the select.
Great suggestion Sriram!
Merge branch 'master' into STABLE