Added all packages in dependency list of metapackage.
Corrected warning on xacro-files in hydro.
Added keywords to arguments for new message instance of JointTrajectoryPoint().
Arguments were previously "in order" but the keyword arguments are recommended as they are more resilient to msg changes.
Update ur5.urdf.xacro

Corrected effort thresholds and friction values for UR5 urdf.
Update ur10.urdf.xacro

Corrected UR10's urdf to faithfully represent joint effort thresholds, velocity limits, and dynamics parameters.
UR10 urdf with Robotiq gripper and table ~ Hydro
Updated mesh files
Moved xml version tag for new URDF
Added URControllerManager

This is an interface for the controller manager which keeps
persistent connections to the services and also provides utilities
for dealing with joint command modes
Merge branch 'hydro-devel-c-api' of https://github.com/gt-ros-pkg/universal_robot into hydro-devel-c-api