Indigo dev

indigo_dev build.
Merged changes from hydro_dev.
Successfully build and catkin_lint it
@ipa-fxm Please Review
Well, is there a new version for the zxing lib for 14.04?

I think we should not add and commit the actual tarbal into the code repo?
Maybe we need to host the tarball on our own repo somewhere? 
@ipa-fmw ?