Removed wait_for_cameras from executive launch.
Corrected remap for manipulator action
Hooked preemption into joystick_listen state.
Preemption handling added to test state.
Hooked preemption into manual and level_one states.
Updated beacon finder test launch file
Added sounds node to executive_test and moved file
First draft of robot simulator
Merge remote-tracking branch 'origin/devel' into smach_executive

Conflicts:
	ros_workspace/src/platform_motion/nodes/manual_control_node.py
Look for both white-on-black and black-on-white beacons
Remove navigation submodule

No longer anything useful in there
Recalibrate center and starboard pairs
The search camera angle is 20 degrees, not 25 below horizon
Swap and re-calibrate center camera pair
Merge branch 'master' into devel

Conflicts:
	ros_workspace/src/samplereturn/calibration/ffmv-center-left-752.yaml
	ros_workspace/src/samplereturn/calibration/ffmv-center-right-752.yaml
	ros_workspace/src/samplereturn/launch/navigation_camera.launch
New general executive action.

I think this will be used for calling smaller state machines
behind action servers.
Merge branch 'pvt_segment_mode' into devel

Conflicts:
	.gitmodules
Moved NamedPoint to samplereturn_msgs
Added get_current_robot_pose to util
Reorganized level_one and level_two code

The two modes are now their own nodes, accessed by acion server.
They are both launched by executive.launch