Removed instalation of gazebo folder which doesn't exist.
Corrected xacro files for hydro.
Merge pull request #1 from ipr-sr2/xacro_hydro_correction

Corrected xacro files for hydro.
Merge pull request #53 from ipr-sr2/xacro_hydro_correction

Corrected warning for xacro-files in hydro.
transmission for new simulation controllers
Merge pull request #56 from abubeck/hydro_dev

transmission for new simulation controllers
Merge pull request #52 from ipr-sr2/hydro_dev

Removed instalation of gazebo folder which doesn't exist.
update xmlns + beautifying
Merge branch 'hydro_dev' of github.com:ipa-fxm/schunk_modular_robotics into hydro_dev
update transmission for schunk components
merge
added libusb dependency
fixed dependency
Merge branch 'hydro_dev' of https://github.com/ipa-fxm/schunk_modular_robotics into hydro_dev