removing svn stuff
stacks don't exist in hydro, so remove it
deleting temporary backup files that made into into repo and deleting rosbuild files
adding in the catkin package files
code changes so that it builds with the latest gazebo libraries
updating sensor urdf to sonar works, need to fix camera sensor next
camera output seems to be working now too. JOB DONE (i think)
creating a launch file that works, removing the cvg_sim_test package and backing up the old world files
updating readme to include instructions on how to launch the simulator
adding a metapackage and correcting a few dependencies for the gazebo plugins
spawning the quadrotor can now accept pose arguments