0.63.0

• Fixed promotion of dynamic colour plugs to Boxes.
• Fixed crash creating Merge node (#253).
• Fixed Gaffer module dependency on GafferImage.
• Display now obeys the default format (#280).
• Fixed circular references in plug popup menus.
• Fixed NumericWidget dragBegin errors.
• Newly created nodes are now connected in-stream where possible (#257).
• Fixed editability of user plugs.
• Added error handling for bad RenderManShader activator annotations.
• Improved automatic placement of filter nodes (#86).
• Fixed empty tab creation in Node Editor.
• Added interactive search for node menu.
• Reordered image filters so that they are displayed from most soft to most sharp.
• Added the Lanczos image filter.
• Fixed a bug with the Sinc image filter.
• Fixed the “streaking” issues when using the ImageTransform.
• Added subpixel filtering to the image Sampler.
• Implemented snapping during Graph Editor drags.
• Optimised node dragging in the Graph Editor.