update tray offset for cob3-1
using powerball tray for cob3-6
update calibration parameter for cob3-1
add calibration files for cob3-1 cameras
Merge pull request #10 from b-it-bots/master

update calibration parameter for cob3-1
update camera calibration for cob3-1
update kinect arm calibration cob3-1
arm_6_ref changed for cob3-5
Merge pull request #11 from b-it-bots/master

updated calibration parameters for cob3-1
release 0.1.2