fixed css class naming conflict when in investigate-with-topic mode
smartboard: don't crap out when there are untagged proposals
smartboard: don't crap out when there are untagged proposals
Merge branch 'master' of github.com:encorelab/CommonKnowledge

Conflicts:
	smartboard/coffee/ck.smartboard.view.balloons.coffee
	smartboard/js/ck.smartboard.view.js