reset wrong calibration of cob3-5
added data for cob3-5b
added the manually adjusted offsets from cob3-5 and some intial values for cob3-5b
fixed wrong minus sign bug
manual calibration for cob3-5b done
Merge pull request #34 from ipa-rmb/groovy_dev

Manual offsets for cob3-5 and setup for cob3-5b