fix for jenkins launch files tests: setting default value for arg
Merge pull request #3 from ipa-fmw/master

fix for launch file test: setting default value for arg
pull merge
Merge pull request #4 from ipa-rmb/master

merged with work of goa-tz, tested quite well, works with fuerte as well
Merge branch 'electric_dev' of github.com:ipa320/cob_people_perception into review-320-electric_dev