Merge pull request #118 from ipa-fxm/hydro_dev

Beautify and cleanup
Merge branch 'hydro_dev' of github.com:ipa-fxm/cob_common into indigo_dev
move EmergencyStopState.msg to cob_msgs
Merge pull request #120 from ipa-fxm/indigo_dev

Indigo dev
Merge pull request #121 from ipa320/indigo_release_candidate

Indigo release candidate
catkin_lint'ing
Merge pull request #122 from ipa-fxm/indigo_dev

catkin_lint'ing