Fixed creation of nodes within Boxes - previously they were added below the root of the script rather than inside the box.
Fixed unstable scene hierarchy expansion (issue #120).
Fixed highlighting bugs whereby widgets inside a highlighted tab would incorrectly display an inherited highlight state. This could be seen when dragging a node into the node editor with either nested tabs or a nested VectorDataWidget.
Fixed PathPlugValueWidget bug where it would attempt to change the value of a read only plug.
Fixed PathWidget bug where it would still do autocompletion and popup menus even when non-editable.
Added TabbedContainer.insert() method.
Generalised the Metadata system to store arbitrary values rather than just descriptions.
Fixed CompoundPlugValueWidget bug whereby it would error if a summary was provided on a non-collapsible UI.
Added right-click context menus to enum and checkbox plug uis.
Added Box plug-promotion feature (#142).
Removed Gaffer.GroupNode (#164).
Fixed ordering of parameters in RenderManShader UI (#136).
Fixed banding and dark edges evident in 2D viewer (#74).
Fixed awkward zooming of Viewers and NodeGraph (#46).