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.
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
New general executive action.

I think this will be used for calling smaller state machines
behind action servers.
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
Moved MonitorTopicState to executive_states.py

New file also contains MoveToPoseState and WaitForFlagState.  Additional
useful executive states should be added here.
Rough outline of pursue_sample node.
Added new nodes (level one and two) to launch file
Now uses WaitForFlagState for pause and mode waits
action_result key is now set on all exit states
Improved robot_simulator

Added move_base server, and NamedPoint publisher
Added fake tf broadcasting to simulator.
Added pose translation/rotation tools to util