Refactored and handling disconnects from players, including czars.
Only displaying Start Game button when minimum number of players are reached
Merge branch 'master' of https://github.com/cardsforhumanity/cardsforhumanity

Conflicts:
	public/views/app.html
Fixed bug with countdown not refreshing on new question when no cards are picked.
Inserting winning answer into Question on results screen. Tracking round # and using that to trigger countdown on stateChoosing
Merge pull request #31 from silversteez/master

Handling disconnects. A few other things.