Launch file to right place this time.

It seems like the syntax is doing different things in different CMake files though.
Merge pull request #109 from hawesie/hydro-devel

Launch file to right place this time.
Merge pull request #107 from Jailander/hydro-devel

Changing launch file to adjust to new machine tag type
Updating CHANGELOGs.
0.1.6
latest version of machine tags in launch file