LOW / fix issue OPENFLEXO-783
LOW / When creating a new diagram specification instance, show only the
Diagram Specification and not all the Virtual Models aivalable.
LOW / Excel actor reference serialization
LOW / Work in progress on excel connector
LOW / work in progress around circular palettes
LOW / work in progress around circular palettes
Merge branch '1.6' of ssh://git@github.com/agilebirds/openflexo into 1.6