Fixed logic for redisplaying graphics in response to element changes - only node changes had ever happened before.
Fixed logic for redisplaying graphics in response to element changes -
only node changes had ever happened before.


git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@410 3c1deb5b-d424-0410-962d-aba41a686d42

hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc