Minor fixes arising from the first practical class of Spring semester 2019. Mainly relating to loading of paramters on first run, and also the integrator of the default controller

Restricted Default Controller setpoint to be within the bounds. Fixed error in the safety check of the flying agent client.

Added message so that the default controller informs the flying agent client when a manoeuvre is complete

Fixed abs() int casting causing errors for default controller state changes. Added integrator to default controller. Needs testing and adding buttons to GUI for run integrator and reset integrator.

Default controller compiles and is tested. Once remaining discrepancy is that the default controller switches into integrator mode too early

Finished implementing the Default controller (except for the integrator). Needs compiling and testing. (Also changed the ClientConfig.yaml to be FlyingAgentClientConfig.yaml)

Now compiles in ROS. Flying agent cleint seems to work well with the new structure. Default controller still needs implementing

Mostly finished with converting the Flying Agent Client to the Default controller. Needs comoiltion testing. Next step is to make the Default controller able to perform take-off and land manoeuvres

Added the custom button support to the new GUI, and added a get setpoint service. The Default and Student controller tabs are now fully integrated for the agent and coordinator mode. Needs testing.

Setpoint changes now generalised through the GUI for the Default controller. Needs more extensive testing. Next step is to get that current controller state when the corrdinator is coordinating only one agent

Yaml connections working (for student and demo controller), and title is now proper. Ready for testing on real system before cleaning up the controllers and their interface

Have setup the basic framework of the coordinator connections. Next step to connect all GUI buttons for (dis-)connect, start,stop,off,and select controller. And then test.

Finished setting up the Battery monitoring node and new parameter service style to match. Needs a GUI reload Yaml to be added and needs to be tested.

Adjusted some variables names in the Student Controller. Removed includes of the non-existent ...YAML.h message header. Database is the standard 4 agent grid