Added visualization of obstacles. Fixed relative font path issue in 3D widgets by using QFont within osgText::Font instead of using static font filename.

Enabled visualization of point cloud data via Protocol Buffers serialization and extended_mavlink_message.

Added to 3D view user switching between local and global coordinate system. Fixed bug in WaypointView: new instance used to assume frame is global.

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

Added visualization of point cloud data from Kinect camera. Colorized point cloud visualization to follow soon.

Fixed bug in check for osg/osgEarth dependencies for QGC. The Q3DWidget instance runs if OpenSceneGraph libraries are installed. The terrain feature is enabled if osgEarth libraries are installed.