Merge pull request #3128 from vrabaud/master

update branches in vision_opencv
Merge pull request #3130 from vrabaud/master

add slam_gmapping for indigo
octomap_msgs: 0.3.1-1 in 'indigo/distribution.yaml' [bloom]
Merge pull request #3132 from isucan/bloom-octomap_msgs-1

octomap_msgs: 0.3.1-1 in 'indigo/distribution.yaml' [bloom]
Merge pull request #3134 from vrabaud/master

add missing Python for Trusty (all manually checked)
add object_recognition_msgs for indigo