Adds call to action animation for the stories piece.
Adds tweet posting feature

When a moderator accepts an unreviewed message, the accepted message gets routed
to the proper display and posted on twitter to the account authenticated using
the credentials in the file private/twitter_credentials.json.
Changes minor copy details and fixes minor bug on counter reset.
Updates meteor @ 0.9.3.1 and some packages.
Merge pull request #8 from fangari/tweet_posting

Adds tweet-posting feature, and call to action animation.