Working on task
new step
proposal sharing: implemented json controller
proposal sharing: Added recipient validation code
Implemented screenName validation
Fixed send mechanism in proposal messaging feature
Merge remote-tracking branch 'origin/master' into proposal_messaging

Conflicts:
	portlets/proposals-portlet/src/main/webapp/css/proposals.css
Added email address name to subscription feature
Small view bug fix
cleanup
small fix
Merge branch 'master' of https://github.com/CCI-MIT/XCoLab