Merge branch 'master', remote-tracking branch 'upstream/master'
Merge pull request #460 from clearpathrobotics/master

Added stacks maintained by Clearpath to the wiki index.
adding pcl.rosinstall
Adding interactive_marker_proxy 0.1.0
Merge pull request #462 from dgossow/patch-5

Adding interactive_marker_proxy 0.1.0
rviz 1.9.21
Merge pull request #463 from dgossow/patch-6

rviz 1.9.21
Add urg_library
rviz 1.9.22

Fixed build error & new features
Ecl branches switched to groovy-devel
Merge pull request #464 from dgossow/patch-7

rviz 1.9.22
Merge pull request #465 from stonier/patch-12

Ecl branches switched to groovy-devel
added rosdep rule for python-zmq (zeromq)
Merge pull request #466 from jonbinney/master

added rosdep rule for python-zmq (zeromq) on ubuntu
Catkin bugfix for ecl_lite
removed rosmatlab stack from doc/fuerte/tu-darmstadt-ros-pkg.rosinstall as it is not maintained anymore in fuerte
Catkin bugfix for ecl_core
Merge pull request #469 from stonier/patch-14

Catkin bugfix for ecl_core
Merge pull request #468 from meyerj/master

removed rosmatlab stack from doc/fuerte/tu-darmstadt-ros-pkg.rosinstall
Merge pull request #467 from stonier/patch-13

Catkin bugfix for ecl_lite