Added divisions plug to Plane node.
Added Cube scene source.
Added Sphere scene source.
Moved Gaffer.SphereNode to GafferTest and updated test cases. Fixes #97.
adding my screen grab app in a functional state
addressing import and naming comments
removing the unnecessary try excepts (handled by the param parser). using IECore.Msg rather than print
Added labelling support to TabbedContainer auto-parenting mechanism.
Implemented Gaffer->About menu item.

Fixes #6.
Only getting plug values once during compute.
fixing silly mistake in previous commit...
Merge pull request #334 from andrewkaufman/primitiveGenerators

Primitive generators
Added a Text node to GafferScene.
Merge pull request #340 from johnhaddon/textNode

Added a Text node to GafferScene.
Merge pull request #336 from bentoogood/screenGrabApp

New app which generates png screengrabs from .gfr scripts