Merge pull request #27 from ipa320/indigo_release_candidate

Indigo release candidate
catkin_lint'ing
Added field ID

In order to fit to latest update of cob_fiducials an id field is necessary
Merge pull request #28 from ipa-fxm/indigo_dev

catkin_lint'ing
missing install tags
merge with hydro
Merge pull request #30 from ipa-fxm/indigo_dev

[Indigo] missing install tags