Remove Android absolute sdk path references
Update gitignore rules
Fix some typos in Android workshop description
Simplify Android sender removing superficial data
Fix Android sender main layout on tablets
"Le" chromecast, not "la".

http://www.google.fr/intl/fr/chrome/devices/chromecast/
http://fr.wikipedia.org/wiki/Chromecast
Complete missing implement statement

Not really sure about what to implement but I think you meant implement Cast.MessageReceivedCallback (GameChannel)
This is not a bomberman.

http://en.wikipedia.org/wiki/Labyrinth_%28game%29