Adding joint trajectory following to MoveIt! excel_bringup configs.

This should allow one to control the robot from within MoveIt, given
that the fake_execution parameter is false. Thus, running MoveIt is a little
more dangerous. Must be cautious.
Merge branch 'hydro' of https://github.com/gt-ros-pkg/excel-util into hydro
Indradrive folder cleaned up. Simulator added.
Adding a move group launch file for excel.  This should work for real.
Improving move_bin / Adding move_bin_constrained
Adding the real calibration frame position values to the urdf
New node to call an action when a trajectory is sent
Fixing Excel compilation after previous CMake meddling.
Fixing indradrive compilation, excel simulator working
Fixing excel_inteface to have a timeout parameter
Adding an action gripper controller
Merge branch 'hydro' into excel_description
Fixing gripper joints and renaming excel_bringup
Fixing launch files
Fixing the path&goal tolerances
Updating the scene model
10 cm gap between the 2 tables
Updating the GripperCommand action
Adding joint limit interfaces.
Finishing propogating changes to URDF velocity values
Moving configuration files to their own folder.