Merge branch 'controller_update' of https://gitlab.ethz.ch/D-FaLL/D-FaLL-System into controller_update

Merge branch 'controller_update' of https://gitlab.ethz.ch/D-FaLL/D-FaLL-System into controller_update

First compiling version with ros library inside GUI code. Now need to do something meaningful. MSG, shared folder with the rest of the team?

fixed CrazyRadio crash on shutdown, fixed RateCommand.msg (according to Dusan's code), removed timers from PPSClient, still fucking around with SafeControllerService

reverted CrazyRadio, fixed PPSClient and fucked around with SafeControllerService. Also modified .gitignore to ignore all pyc files.

created dummy file to let git make an include directory in the d_fall_gui package, as is would not compile otherwise

solved directory problem by adding INCLUDEPATH += 3450PWD/include to CrazyFlyGUI.pro. Now we can freely choose where to locate header and source files for GUI

Added src and include, made GUI compile with QtCreator stuff, to keep the development going. Need to add compilation with ROS stuff, catkin_make

safeRateCommandPkg added as Output from safeController. This gets then pubslished via callbackRateCommand.

Added fit in view complete support. Also added Fit All in view. Now we have personalised tab widgets that allow us to start expanding the information displayed and actions that will be taken in each tab

Added table creation mode, fixed some other details. Next: decide how we want to manage what we want to see, the modes, etc etc..

added area and controlleroutput structs to PPSClient for testing; added CentralManagerService to launch file

Solved zoom issue, now text and handlers will stay same size when zooming. Added IDs. Separated rectangles in 2 kinds: CrazyFlyZone and Table(still to be implemented)