LOW / Prevent NPE
MEDIUM / Fixed issue with method lookup (relative to type checking)
MEDIUM / View for VirtualModelInstance
MEDIUM / Working on model synchronization + improve GUIs in VPM and VE
MEDIUM / Add type while creating pattern role
IMPORTANT / Fixed issue with diagrams no more displayed
MEDIUM / Fixed individual selector rendering
Merge branch '1.6' of ssh://git@github.com/agilebirds/openflexo into 1.6

Conflicts:
	flexodesktop/modules/flexoviewpointmodeler/src/main/resources/Fib/DiagramEditionPatternView.fib
	flexodesktop/modules/flexoviewpointmodeler/src/main/resources/Fib/StandardEditionPatternView.fib
	flexodesktop/modules/flexoviewpointmodeler/src/main/resources/Fib/VirtualModelStructuralPanel.fib