started perspective projection of geometry map
added line clipping to sensor model
kinect sensor model now projects correctly
added clipping and visibility check to projection
merged master
refactoring of polygon and cylinder class
added new files
Merge branch 'groovy_dev' of github.com:ipa320/cob_environment_perception into review-320
moved merged_limit to shape class
Merge branch 'master' into experimental
Merge pull request #25 from ipa-goa-sf/master

fixed nan-cluster bug
added a comment
refactoring
refactoring
removed obsolete package
fixed marker
Merge branch 'groovy_dev' of github.com:ipa320/cob_environment_perception into review-320
Merge branch 'review-320'
changed msg names
deleted old srv