Added Depth Cloud ROS Params to launch file.
Added Template node for sending goals to the navigation stack.
Changed template to receive a goal position on a topic and keeps node alive after goal is reached.
Changes to the parameters in the launch files. Also temporarily a node exec.
Merge branch 'navstack' of github.com:SquadCollaborativeRobotics/CollectorBotReal into sam

Conflicts:
	launch/collector_nav.launch