Added angle conversion testing, added battery settings option, added option to set MAVLink ID of groundstation

name element of mavlink_named_value is uint8_t

The current ArduPilotMega code uses MAVLINK_MSG_ID_GLOBAL_POSITION not
MAVLINK_MSG_ID_GLOBAL_POSITION_INT

Fully working waypoint interface, thoroughly tested. Active waypoint setting has to be debugged in the simulator, but works fine on real hardware

Added not yet working version of logging / log replay, fixed ALL bugs in main window, enabled full persistence in main window and serial link.

Improved line chart, brought back movement on HUD (but still looks somewhat wrong on the dials). Fixed logging for ground time mode

Added new options for windows serial port, fixed a number of bugs, added customizing options to instrument widgets

Significantly bugfixed persistence and link adding/removal. Not yet fully there, but getting closer to release

QGroundControl now compiles under Visual Studio 9 / 2008. Google Earth support for Windows close to work.

added forwardMessage() function to send out Global Position over serial links
that are not part of the UAS's link list.