Merge pull request #63 from ipa-nhg/groovy_dev

Description for the a new lwa4p version
Merge branch 'groovy_dev' of github.com:ipa320/schunk_modular_robotics into groovy_dev
Merge pull request #64 from ipa-nhg/groovy_dev

Fix mesh files for lwa4d
Merge branch 'groovy_dev' of github.com:ipa320/schunk_modular_robotics into groovy_dev