collect responses to questions
 - implement updating of poll UI
polling charts
Merge branch 'make-users-user-conn-invoke' of https://github.com/bigbluebutton/bigbluebutton into make-users-user-conn-invoke

Conflicts:
	bigbluebutton-client/src/org/bigbluebutton/modules/polling/managers/PollingWindowManager.as
 open main poll window
 cleanup and wrap pie chart result in window
Conflicts:
	bigbluebutton-client/src/org/bigbluebutton/modules/polling/managers/PollingWindowManager.as
 open display result window
 - hook up display results and update window
 - try to display results
 - display result in pie chart
 - cleanup
Adding bar chart
Merge branch 'make-users-user-conn-invoke' of https://github.com/bigbluebutton/bigbluebutton into make-users-user-conn-invoke

Conflicts:
	bigbluebutton-client/src/org/bigbluebutton/modules/polling/views/DisplayResultPieChartPanel.mxml
 open take poll window
Merge branch 'make-users-user-conn-invoke' of github.com:bigbluebutton/bigbluebutton into make-users-user-conn-invoke

Conflicts:
	bigbluebutton-client/src/org/bigbluebutton/modules/polling/views/DisplayResultWindow.mxml
Rewrite layout.css file in LESS template
 - display poll when opening take poll window
 - open create poll window
 - display bar chart
 - send create poll request to server