rosdep: add lz4 for Arch Linux.
rosdep: add opencv for Arch Linux.
Merge pull request #4638 from bchretien/master

rosdep: add opencv/lz4 for Arch Linux.
grasping_msgs: 0.3.0-0 in 'hydro/distribution.yaml' [bloom]
grasping_msgs: 0.3.0-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #4639 from mikeferguson/bloom-grasping_msgs-0

grasping_msgs: 0.3.0-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4640 from mikeferguson/bloom-grasping_msgs-1

grasping_msgs: 0.3.0-0 in 'indigo/distribution.yaml' [bloom]
abb: 1.1.2-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4641 from shaun-edwards/bloom-abb-1

abb: 1.1.2-0 in 'hydro/distribution.yaml' [bloom]
bump laser_geometry in hydro and indigo
Merge pull request #4642 from vrabaud/master

bump laser_geometry in hydro and indigo
bump vision_opencv on all distros
Merge pull request #4643 from vrabaud/master

bump vision_opencv on all distros
Add mavros package to hydro and indigo doc
Merge pull request #4644 from vooon/add_mavros_pkg

Add mavros package to hydro and indigo doc
keyboard: 0.1.1-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4645 from v01d/bloom-keyboard-0

keyboard: 0.1.1-0 in 'hydro/distribution.yaml' [bloom]
crsm_slam: 1.0.3-1 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4646 from czalidis/bloom-crsm_slam-4

crsm_slam: 1.0.3-1 in 'hydro/distribution.yaml' [bloom]
universal_teleop: 0.1.0-0 in 'hydro/distribution.yaml' [bloom]