update changelog
"0.5.1"
"0.5.2"
Merge pull request #76 from abubeck/hydro_dev

Cleanups for hydro release
Merge branch 'hydro_dev' into hydro_release_candidate
Merge pull request #78 from ipa320/hydro_release_candidate

Hydro release candidate
chmod -x for meshes
beautify and correct PYTHON_DESTINATION
use BIN_DESTINATION
Merge pull request #79 from ipa-fxm/hydro_dev

Beautify install tags and correct PYTHON_DESTINATION
ee_link is now back in ur_description
reminder comment ;-)
add new service
Merge pull request #80 from ipa-fxm/hydro_dev-universalupdates

Hydro dev universalupdates
merge
merge cob4
fix urdf test
Merge pull request #84 from ipa-nhg/hydro_dev

merge cob4
Merge branch 'hydro_dev' of git://github.com/ipa320/cob_common into hydro_dev
Merge pull request #85 from ipa-fmw/hydro_dev

fix urdf test