add robot groups for rqt plugins
adds package for rviz launchers
Merge pull request #24 from yujinrobot/add_rviz_launchers

Add rviz launchers
replace deprecated shared_dynamic_cast (fixes #25)
Merge pull request #26 from Ram-Z/issue25

replace deprecated shared_dynamic_cast (fixes #25)
removes email addresses from authors
Merge pull request #28 from yujinrobot/author_fix

removes email addresses from authors
Merge branch 'hydro-devel' into hydro