Initial commit for SpaceGround app.

SpaceGround is an HTML5 companion app of the SpaceCoop Android app.
It uses HTML5 WebSocket to communicate with SpaceCoop devices.
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
Initial commit for SpaceBroker app + update of the SpaceGround app.

SpaceBroker is a WebSocket server written in Python.
It tries to manage communication between SpaceGround and virtual SpaceCoop devices.
Merge remote-tracking branch 'origin/master'