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.
Add Fedora 20 to release_platforms for H and I
Merge pull request #4962 from atiderko/master

[rosdistro] multimaster_fkie: 0.3.12-0 in 'groovy/distribution.yaml' and 'hydro/distribution.yaml'
lms1xx: 0.1.0-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #4963 from mikepurvis/bloom-lms1xx-0

lms1xx: 0.1.0-0 in 'indigo/distribution.yaml' [bloom]
rtmros_hironx: 1.0.16-0 in 'groovy/distribution.yaml' [bloom]
Merge pull request #4964 from 130s/bloom-rtmros_hironx-0

rtmros_hironx: 1.0.16-0 in 'groovy/distribution.yaml' [bloom]
laser_filtering: 0.0.1-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4965 from DLu/bloom-laser_filtering-0

laser_filtering: 0.0.1-0 in 'hydro/distribution.yaml' [bloom]
pluginlib: 1.10.0-3 in 'indigo/distribution.yaml' [bloom]
Merge pull request #4968 from esteve/bloom-pluginlib-0

pluginlib: 1.10.0-3 in 'indigo/distribution.yaml' [bloom]
hector_localization: 0.1.3-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4969 from meyerj/bloom-hector_localization-6

hector_localization: 0.1.3-0 in 'hydro/distribution.yaml' [bloom]
people: 1.0.4-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4970 from dlaz/bloom-people-3

people: 1.0.4-0 in 'hydro/distribution.yaml' [bloom]
rosjava_bootstrap: 0.1.22-0 in 'hydro/distribution.yaml' [bloom]
Merge pull request #4971 from stonier/bloom-rosjava_bootstrap-1

rosjava_bootstrap: 0.1.22-0 in 'hydro/distribution.yaml' [bloom]
moveit_python: 0.2.5-0 in 'hydro/distribution.yaml' [bloom]
moveit_python: 0.2.5-0 in 'indigo/distribution.yaml' [bloom]