update changelog
0.5.2
Merge branch 'hydro_dev' of github.com:abubeck/cob_simulation into hydro_dev
Merge branch 'hydro_dev' of github.com:ipa320/cob_simulation into hydro_dev
Merge branch 'hydro_dev' of github.com:ipa320/cob_simulation into hydro_dev
cleaning up
Merge pull request #58 from ipa-fxm/indigo_dev

Indigo dev
small changes to get simulation running
Merge branch 'hydro_dev' of github.com:ipa320/cob_simulation into indigo_dev
Merge branch 'hydro_dev' of github.com:ipa320/cob_simulation into hydro_dev
removed physics and added floor collisions
Merge pull request #63 from ipa-nhg/empty_apartment

removed physics and added floor collisions
Merge branch 'hydro_dev' of github.com:ipa320/cob_simulation into hydro_dev
merge with hydro_dev
change to latest transmission format
Merge pull request #62 from ipa-fxm/indigo_dev

Indigo dev
Merge pull request #64 from ipa320/hydro_release_candidate

Hydro release candidate
Merge pull request #65 from ipa320/hydro_dev

bringin updates from hydro_dev
remove object script working