Gaffer 0.35.5.0-arnold5

Features

• Added a new dispatch application (#2601).
  • This app dispatches task nodes such as ImageWriters, SystemCommands and Render nodes,
    either from within an existing .gfr file or by creating a script on the fly. This differs from the execute
    app in that it performs a full dispatch via a dispatcher, rather than executing a single task node.
  • The gui mode of this app uses a more general DispatchDialogue which can be used by external
    tools for customized dispatching.

Improvements

• Isolate/Prune/Parent : Improved performance when processing sets (#2595).
• Arnold Renderer : Improved performance when outputting shaders (#2595).
• ArnoldOptions : Turn on parallel_node_init by default (#2595).
  • This was a problem with Cryptomatte in Arnold 4, but appears to be safe in Arnold 5.
• SceneViewUI : Defer camera and light set computation until required (#2600).
• PlugLayout : Added support for embedded PlugLayouts (#2596).
• Application : Run startup files before evaluating args (#2601).
• Dispatcher : Added ability to deregister a dispatcher type (#2601).
• ErrorDialogue : Present more user friendly message (#2601).

Fixes

• SubGraph : Account for BoxIO in correspondingInput() (#2600).
• FormatPlug::acquireDefaultFormatPlug() : Fixed crashes if None is passed via
  python bindings (#2600).
• Arnold : Fixed NodeEditor layout of new standard_surface shader parameters (#2600).
• MessageWidget : Maintain indentation in tracebacks (#2601).
• LocalDispatcher : Fixed suppression of exceptions during foreground dispatch (#2601).

Build

• Fixed IE install script for Cortex 9.