Substantially bugfixed and improved deactivation/activation and persistence of widgets. A lot of testing of Google Earth view, only minor improvements

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.

First semi-usable version with new menu layout based on autopilot. Still very experimental. Current Bug: Linecharts do not work. Need to find out why

Still working on having independent builds for each MAV, most of the work is done, only Central Widgets remain to be instantiated and menu-controlled based on the autopilot

VERY EXPERIMENTAL. Saving of location for the common widgets now working and persisted across sessions. Needs to be extended to the individual autopilot widgets

Fixed imagery rendering issues. Robot position in Pixhawk3DWidget is now derived from the global pose (lat/lon/alt) instead of the local pose.