Added undo actions for Editor_addOutlineItem, Editor_removeOutlineItem, and Editor_updateOutlineItem.
Added undo actions for Editor_addOutlineItem, Editor_removeOutlineItem, and
Editor_updateOutlineItem.

corinthia/corinthia-editorlib,corinthia/corinthia-editor,corinthia/corinthia-editorlib,corinthia/corinthia-editor,corinthia/corinthia-editor,corinthia/corinthia-editor,corinthia/corinthia-editor,corinthia/corinthia-editorlib,corinthia/corinthia-editorlib,corinthia/corinthia-editorlib