Renaming category files.
Renaming category files in code.
ARCifying.
Cleaning up separators.
Converting to modern ObjC.
Cleanup.
Improving “-compare:”.
Cleanup.
Fixing REMOVE_REDUNDANT_LEAF_KEY.
Reformatting using uncrustify.
Cleanup.
Cleanup.
Converting accessors to properties.
Cleaning type usage.
Cleanup.
Improving comments.
Merging in improvements made in BaseNode.
Rewriting to fix the retain cycle when using leafs.
Adding weak reference to a node’s parent.
Rewriting everything to use this new property.
Improving docs.