update changelogs
"0.5.2"
Merge branch 'hydro_dev' into hydro_release_candidate
Merge branch 'hydro_dev' into hydro_release_candidate
update changelogs
"0.5.3"
Merge branch 'hydro_dev' into hydro_release_candidate
update changelog
0.5.4
Merge branch 'hydro_dev' of github.com:ipa-nhg/schunk_modular_robotics into hydro_dev
Merge branch 'hydro_dev' of github.com:ipa320/schunk_modular_robotics into hydro_dev
Merge pull request #81 from ipa320/hydro_release_candidate

bring back changes from Hydro release candidate
beautify mesh files
Merge pull request #84 from ipa-nhg/collada_mesh

Collada mesh
materials should not be loaded in the components urdf
wrong lenght
pg70 collada model
origin for collision model is in the center of the box
Merge pull request #1 from ipa320/hydro_dev

update
mesh for shoulder added