updating platform info to quadruple
Initialize deadman_pressed_ to false

Initalize deadman_pressed_ to false in order to avoid the effect described in https://github.com/turtlebot/turtlebot_apps/issues/71
Merge pull request #72 from MartinPeris/patch-1

Initialize deadman_pressed_ to false
Merge pull request #70 from turtlebot/rapp_Fix

updating platform info to quadruple
Removed dependencies that move_base now brings in, closes #56.
merges changes from hydro-devel