#2: update document about ps3 bluetooth
#2: use auto mode as default
#2: ignore compiled python files (*.pyc)
#2: detect ps3 wireless automatically
#2: rename xbox.launch and xbox_footstep.launch to joy.launch and joy_footsetp.launch.

it support many game controllers now and the name did not match the current state.
#2: automatically detect the game controller type at joy_footstep.launch

use type=auto parameter
Merge pull request #7 from garaemon/ps3-auto-detect-id-2

Ps3 auto detect