Updated SetPosition

- SetPosition now updates the aircraft's orientation after moving the aircraft
 - This should improve the handling of the aircraft when setting the position while paused and then unpausing
 - Fixes #91

xpcPlugin/DataManager.cpp

@@ -680,6 +680,17 @@ namespace XPC
 			pos[2] = (float)GetDouble(DREF_Elevation, aircraft);
 		}
 
+        // See: http://www.xsquawkbox.net/xpsdk/mediawiki/MovingThePlane
+        // Need to get the aircraft's current orientation before moving and
+        // reset the orientation after moving to update the quaternion
+        float orient[3];
+        orient[0] = GetFloat(DREF_Pitch, aircraft);
+        orient[1] = GetFloat(DREF_Roll, aircraft);
+        orient[2] = GetFloat(DREF_HeadingTrue, aircraft);
+
+        // Now set the aircraft's position. Need to set world position for
+        // "long" moves, but since there isn't an easy way to calculate "long",
+        // we just set it every time.
 		double local[3];
 		XPLMWorldToLocal(pos[0], pos[1], pos[2], &local[0], &local[1], &local[2]);
 		// If the sim is paused, setting global position won't update the
@@ -691,6 +702,9 @@ namespace XPC
 		Set(DREF_Latitude, (double)pos[0], aircraft);
 		Set(DREF_Longitude, (double)pos[1], aircraft);
 		Set(DREF_Elevation, (double)pos[2], aircraft);
+
+        // Now reset orientation to update q
+        SetOrientation(orient, aircraft);
 	}
 
 	void DataManager::SetOrientation(float orient[3], char aircraft)