add changelogs
0.5.3
use collada material description
Merge branch 'hydro_dev' of github.com:ipa320/cob_common into hydro_dev
New head_center_link
Merge pull request #94 from ipa-nhg/hydro_dev

New head_center_link
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
deleted unnecessary head versions
Merge pull request #104 from ipa-fxm/hydro_dev

update gazebo tags for sensor plugins
Merge pull request #108 from ipa-nhg/head

deleted unnecessary head versions
no inertia in base_footprint