add changelogs
0.5.3
use collada material description
Merge branch 'hydro_dev' of github.com:ipa320/cob_common into hydro_dev
Merge pull request #95 from ipa320/hydro_release_candidate

bring back changes from Hydro release candidate
beautify mesh files
Merge pull request #98 from ipa-nhg/collada_mesh

beautify mesh files
Merge branch 'hydro_dev' of github.com:ipa320/cob_common into hydro_dev
un-hardcodize ur-macro
Merge pull request #101 from ipa-fxm/hydro_dev

un-hardcodize ur-macro
Merge pull request #99 from ipa-bnm/hydro_dev

for raw3-3 base use colors from dae file instead of ipa grey
wrong topic names
Merge pull request #102 from ipa-nhg/hydro_dev

wrong topic names
update gazebo tags for sensor plugins
Merge pull request #105 from ipa-fxm/indigo_dev

Indigo dev