Update .rosinstall

Adding week1 and week2 so rosws merge will work.
Merge branch 'master'
adding keys to support setup
updating turtlebot.bash for laptop install
Adding a minimal launch file.
Merge branch '1.0' of https://github.com/mjcarroll/open-robotics-lab into 1.0
Update turtlebot.bash, TURTLEBOT_* exports, turtlebot udev rule
Fixes to setup/turtlebot.bash
Improvements and fixes to setup/turtlebot.bash
Set indicator-mulitiload preferences in setup/turtlebot.bash
Adding mesa-utils to turtlebot install list