Minor cleanup, fixed a bug where the serial port would not connect on first application launch on Linux

view only" functions and renamed some of the old functions. This version compiles, but has a lot of bugs.

Finally resolved waypoint positioning issues, 2D and 3D map work now nicely together with less flicker

Fixed roll angle in Google earth, still not smooth. Fixed a number of threading issues. Fixed all custom widget related bugs. Improved MAVLink decoder. Reduced CPU usage substantially across all views