+ Expose method getPointOnScreen() to Python
+ Get exact point on data model when picking in 3d view
+ Return an emtpy array if something fails inside getPickedPoints()
+Add method to get mdi view by view provider, add method to get flag widgets
+ Add method load() to Document class in Python
Added functionality for axonometric views in orthogrpahic projection tool
Merge branch 'master' into drawing