Prerelease cleanup

* the udev rule has been renamed to identify it's origin.
* the udev rule will be automatically installed and therefore /dev/input/rumblepad is now the default.
Added license file
Installing the udev rule directly won't work properly. Following the example of http://wiki.ros.org/kobuki_ftdi now, using a script to do it.
This can be run with `rosrun scitos_teleop create_udev_rules`
Merge branch 'hydro-devel' into teleop

Conflicts:
	scitos_teleop/CMakeLists.txt
	scitos_teleop/package.xml
Some more merging.
Merge branch 'hydro-devel' into teleop

Conflicts:
	scitos_teleop/package.xml
Merge pull request #98 from cdondrup/teleop

[scitos_teleop] Prerelease cleanup