Removed unnecessary copying from Attributes and ShaderAssignment.
Removed unnecessary copying from Options and Outputs.
Removed unnecessary copying from Sets node.
Renamed ScriptRange to FullRange.

User feedback found this more intuitive.
Adding PlaybackRange to the framesMode menu.

Now that we have menu items which don't map directly to enum values, we need to manage the selection menu ourselves.

Fixes #1007.
Forcing the framesMode widget to update.

This gets us the correct enabled state on the frameRange plug when opening the UI for the first time, and when switching between dispatchers.
Added "command" plug to RenderManRender.

This allows the user to customise the command used to render the rib.

Fixes #1017.
Merge pull request #1030 from johnhaddon/rmanRenderCommand

Added "command" plug to RenderManRender.
Merge pull request #1026 from johnhaddon/lessCopying

Removed unnecessary copying
Removed disabling and added todo.
Merge pull request #1027 from andrewkaufman/dispatcherFrames

Dispatcher FramesMode changes
Bumped version to 0.2.0.0 and updated Changes file.