Merge pull request #3 from ros/master

updates from ros organisation
Add gazebo dep for Fedora
Add options/install_flags for boost/pcl.

 - as long as https://github.com/ros-infrastructure/rosdep/pull/304
   is not merged these will be ignored. If we merge this before rosdep
   is updated it will make testing that rosdep change slightly more easy.
 - install_flags will be used for `brew install`, but unlike options
   they are not checked for already installed packages
 - for boost --with-python see https://github.com/ros-infrastructure/rosdep/issues/330
 - for pcl --HEAD on Mavericks see
   - http://answers.ros.org/question/173654/cant-install-pcl-with-homebrew-on-osx-109-during-ros-hydro-installation/
   - https://github.com/ros/homebrew-hydro/issues/3
Make check_rosdep script more robust.
Merge pull request #5104 from gavanderhoorn/master

Setup devel job for fanuc_experimental.
robot_model: 1.11.5-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #5106 from wjwwood/bloom-robot_model-0

robot_model: 1.11.5-0 in 'indigo/distribution.yaml' [bloom]
robot_state_publisher: 1.9.11-0 in 'hydro/distribution.yaml' [bloom]
robot_state_publisher: 1.10.3-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #5108 from wjwwood/bloom-robot_state_publisher-1

robot_state_publisher: 1.10.3-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #5107 from wjwwood/bloom-robot_state_publisher-0

robot_state_publisher: 1.9.11-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4861 from NikolausDemmel/homebrew-add-options

Add options/install_flags for boost/pcl.
diagnostics: 1.7.11-0 in 'groovy/distribution.yaml' [bloom]
diagnostics: 1.8.4-0 in 'hydro/distribution.yaml' [bloom]
diagnostics: 1.8.4-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #5109 from trainman419/bloom-diagnostics-3

diagnostics: 1.7.11-0 in 'groovy/distribution.yaml' [bloom]
Merge pull request #5110 from trainman419/bloom-diagnostics-4

diagnostics: 1.8.4-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #5111 from trainman419/bloom-diagnostics-5

diagnostics: 1.8.4-0 in 'indigo/distribution.yaml' [bloom]
ethzasl_icp_mapping: 0.9.6-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #5112 from samlcharreyron/bloom-ethzasl_icp_mapping-0

ethzasl_icp_mapping: 0.9.6-0 in 'hydro/distribution.yaml' [bloom]