Merge pull request #328 from thomas-moulard/master

Add visp to releases/groovy.yaml
fixing debian and fedora PIP catkin-pkg rules
Update doc/groovy/win_ros.rosinstall
Increased octomap_msgs to 0.2.8
Removed octomap_stacks, they are already in the release rosdistro
Merge pull request #330 from ahornung/patch-7

Increased octomap_msgs to 0.2.8
Merge pull request #331 from ahornung/patch-8

Removed octomap_stacks, they are already in the release rosdistro
Merge pull request #329 from hughie/patch-1

Update doc/groovy/win_ros.rosinstall
Update releases/groovy.yaml
Erred with yujin_ocs - it still uses groovy
Merge pull request #333 from stonier/patch-2

Erred with yujin_ocs - it still uses groovy
Release visp_2.6.2-1 in releases/groovy.yaml.

Previous release was missing building flags leading to only a static
library being built.