Merge pull request #2 from youbot/hydro-devel

pull
added runtime dependencies
corrected misleading error message about missing config file
removed debug message
Added python support for teleoperation sycript.
Merge pull request #3 from blumenthal/wnowak

Added python support for teleoperation script.
Merge pull request #2 from wnowak/hydro-devel

fixes for cmake, error messages and python