Merge pull request #153 from abubeck/hydro_dev

some install tag updates
fix for catkin_make_isolated
install tags
Merge pull request #155 from ipa-nhg/hydro_dev

install tags
add changelog
0.5.1
catkin_lint
add cob4-1 to robotlist
remove cob_hardware_test
missing install tags and test file
Merge pull request #156 from ipa-fxm/hydro_dev

catkin_lint and install tags
merge
Merge pull request #157 from ipa320/hydro_release_candidate

Hydro release candidate
minor changes in install tags
Merge pull request #158 from ipa-fxm/hydro_dev

minor changes in install tags
removed wrong duplication
Merge pull request #160 from ipa-fxm/hydro_dev

removed wrong duplication
correct PYTHON_DESTINATION
use BIN_DESTINATION
Merge pull request #161 from ipa-fxm/hydro_dev

correct PYTHON_DESTINATION