Added messages and structure.
Working basic task creation.
Basic node comms working.
Moved test action to task_executor, adding server to provide it.
Working call with action arguments.
Abstracted basic functionality into base class
Basic execution flow through abstract and FIFO working.
Basic FIFO executor working without preemption/pausing or navigation to points.
Basic test of FIFO done and working.

Works from the command line, but can't seem to make the rostest integration work.
Removed creation of service based on node name (silly!).

This now fixes rostest integration. Run with `rostest task_executor fifo_tester.test`
Navigation added for faked action server.
Test now include navigation, and is working.
Added the ability to just drive somewhere without doing an action.
Added basic script to propose patrol targets.
Added launch file for patrolling.
Using proper nodes from datacentre via ros param.
Added int and float arguments to task execution.
using new TopologicalNode.msg
Updated tests for new action definition.
Merge pull request #12 from BFALacerda/hydro-devel

using new TopologicalNode.msg