Please Work
Merge branch 'master' of https://github.com/ajthompson/turtlebot_labs into Sarah

Conflicts:
	src/CMakeLists.txt
Removed build files
Merge branch 'alec-dev'
Merge branch 'alec-dev'
Astar server works
Merge branch 'master' of https://github.com/ajthompson/turtlebot_labs