Merge pull request #84 from koding/collaboration-social

IDE: remove unused route
chat: remove reduntant views from settings pane
chat: add views to chat tab view
chat: basic styling of the chat panel
Collaboration: Confirmation modal for end session.
chat: remove general header and move it to chat pane
Collaboration: Implemented a message broadcasting mechanism.
Collaboration: First bind event then do the job.
AppController: Update method and property name.
Collaboration: Broadcast session ended message.
Collaboration: Handle session ended for participants.
chat: fix styling
Merge pull request #1 from burakcan/collab-chat-dropdown

chat: fix styling
chat: destroy plus button when user is not host
ide: don't trigger focus when it's not needed
SettingsPane: Forward leave request.
Collaboration: Handle partipant leave.
AppController: Code styling.
IDE: Remove logs.
IDE: remove unused route