Some more bugfixes and improvements for the Mission Plan widget. The "current"-checkbox in "Onboard"-waypoints can no longer be changed by clicking directly, but it is handled internally by QGC. Now there should be one and only one checked checkbox, which shows the last KNOWN "current" waypoint on MAV. The white border around an unchecked checkbox means, that the user is requesting the change of current waypoint, but QGC has not received MISSION_CURRENT message as a confirmation yet. Also,if there is no response from UAV after pushing "Read" or "Refresh", the "Onboard" list will be deleted to indicate, that there is no information available.

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

Started parameter interface refactoring to adhere to MVC design pattern. Working on getting custom widgets completely up and running

removed unnecessary list element operations when updating waypoint list view. There is still some crazy updating going on - most probably in the wp widgets

Refactoring WP interface, somewhat brittle and untested at this point - use the master branch if you need stable code right now