V2.2–Made change for hand pointer on add variables,changed text for select polygon area,removed global variable,resolved SignIn prompt issue

Implemented following:
1. Incorporated change to use hand pointer on add variables instead of
an edit text cursor
2. Changed text for select polygon area (remove the word 'polygon')
3. Removed global variables(dojo)
4. Resolved issue regarding SignIn prompt even if everything is shared
with appID