urdf_python: Removed to use urdf_python_py instead
urdf_params: Fixed this to use newer API. Need to fix rest.
calibration_estimation: sed'd other files to fix {joint,link}{s -> _map}
calibration_estimation: Added info on running unittests
Merge pull request #18 from eacousineau/feature/urdf-parser-py

Feature/urdf parser py