added script to upload app to GAE
only send every 2nd move

cleanup
join automatically
removed buttons from UI
added run script
made run.sh executable
added channel presence service to config
notify other players of (dis)connections

also implemented new notify endpoint - this does not update any memcache state. it only broadcasts the new state to other users.
use /notify endpoint instead of /move

handle (dis)connect messages
display players that are currently in the game
move up structs to beginning of file
added get/add/delete player endpoint

this prepares upcoming state management changes
added scripts to test new endpoints