Added serial port as parameter to launch files
	modified:   create/mobile_base.launch.xml
	modified:   kobuki/mobile_base.launch.xml
	modified:   mobile_base.launch.xml
	modified:   roomba/mobile_base.launch.xml
	modified:   ../minimal.launch

Committer: mayrjohannes <joh.mayr@jku.at>
Author: mayrjohannes <joh.mayr@jku.at>
Merge pull request #114 from mayrjohannes/hydro-devel

Added serial port as parameter to launch files (Issue https://github.com/turtlebot/turtlebot/issues/111)