Deprecation Warnings on MoveIt launch

[IanTheEngineer]

There are two sets of warning that now show up when starting roslaunch sawyer_moveit_config sawyer_moveit.launch:

• [ ] Trajectory Parameters

  [ WARN] [1478272020.526312660]: 
  Deprecation warning: parameter 'allowed_execution_duration_scaling' moved into namespace 'trajectory_execution'.
  Please, adjust file trajectory_execution.launch.xml!
  [ WARN] [1478272020.529095252]: 
  Deprecation warning: parameter 'allowed_goal_duration_margin' moved into namespace 'trajectory_execution'.
  Please, adjust file trajectory_execution.launch.xml!

  and

• [ ] move_group Trajectory Action

  [ WARN] [1478272026.036739941]: 
  Deprecation warning: Trajectory execution service is deprecated (was replaced by an action).
  Replace 'MoveGroupExecuteService' with 'MoveGroupExecuteTrajectoryAction' in move_group.launch

  and

• [ ] xacro.py deprecation

  xacro.py is deprecated; please use xacro instead

[IanTheEngineer]

The first warning is related to https://github.com/ros-industrial/fanuc_experimental/pull/24

[IanTheEngineer]

The Trajectory Action change will break Indigo (as noted in #14). Best to keep the warning intact.