Changed namespace to teleop_joystick
Created a message for the action buttons
Now publishing a custom button message containing 4 bools, one for every action button.
rumblepad_control is now checking if the pad runs in teh correct mode to prevent confusion because of a wrong button layout.
Merge branch 'master' of https://github.com/strands-project/scitos_apps into button_topic
Merge branch 'master' of https://github.com/strands-project/scitos_apps
Merge branch 'button_topic'
Merge pull request #3 from cdondrup/master

Tested on robot and in simulation. Seems to work fine.