set default val for data_skip to 2, added image flip
add arg for nodelet manager
moved to cob_cam3d_throttle package in cob_perception_common
Merge pull request #52 from ipa-goa/master

some changes regarding image_flip and cam3d_throttle
removed image_flip because it is not generic for all robots
Merge pull request #53 from ipa-goa/master

removed image_flip because it is not generic for all robots