update changelogs
0.5.3
remove deprecated launch files in cob_driver and add nodes to cob_robots
Merge pull request #132 from abubeck/feature/moving_base_launchfiles

remove deprecated launch files in cob_driver and add nodes to cob_robots
Merge pull request #12 from ipa320/hydro_dev

updates from ipa320
Update package.xml
Merge pull request #135 from ipa320/hydro_release_candidate

bring back changes from Hydro release candidate
Update package.xml
move cob_hokuyo and cob_hwboard to cob_bringup_sandbox
Update package.xml
Update package.xml
Update package.xml
Merge pull request #136 from ipa-fmw/hydro_dev

change maintainer and add missing dependency
Merge branch 'hydro_dev' of github.com:ipa320/cob_driver into feature/voltagectrl_newphidget