build dependency rostest added to package.xml and rostest added to CMakeLists.txt
Merge pull request #82 from isanchez12/master

Adding missing build dependency rostest.
Merge pull request #81 from davetcoleman/master

Pulled in changes in hydro-devel to master
Documentation improvements.

- More consistency between transmission and joint limits interfaces doc.

- Make explicit that these interfaces are not meant to be used by controllers,
  but by the robot abstraction.
Merge branch 'master' of https://github.com/willowgarage/ros_control
Better documentation of YAML joint limits spec.

- Add cross-references in doc main page.
Add meta tags to packages not specifying them.

- Website, bugtracker, repository.
Merge branch 'master' of github.com:ros-controls/ros_control into transmission_parsing