Test to add to the repository. Will be undone later.
Undid changes
Adding AngularJS to JS folder
Added two directives: left-menu and column-stream
left-menu: the [soon to be] collapseable menu on the left hand side of the screen.
column-stream: the column of incomming tweets. Useful for when we need to add multiple columns using JS.
Angular-ify!

Three directives:
 - Tweets
 - Panes of twitter streams
 - Collapsible main menu
Merge pull request #1 from katlyn-edwards/master

Angular-ify