Interface: Started on basic interface elements

- Added a connection closed message
- Created css for a loading element
- Changed colors of the main canvas
- Started on css and js to start fullscreen
Further work on fullscreen function
Merge remote-tracking branch 'origin/protocol' into interface_elements
Further implemented the fullscreen option on the client side

- Animated transition to fullscreen added
- Refactored the x and y coordinate functions in the Javascript
Merge remote-tracking branch 'origin/protocol' into interface_elements
Merge remote-tracking branch 'origin/protocol' into interface_elements
Renamed current fullscreen to fullwindow
Fullscreen function added
Removed loader
Merged with dev and fixed the positions
Merge pull request #47 from CanvasHS/interface_elements

Interface elements