Currently only implements mode=='leaves', i.e. traverse all leaf nodes.
Seems to work from casual testing, but is missing unit tests. See also
other TODO comments in this commit
Change-Id: I41292c21c627a18af7985e8ef9e23c7b14252b21
* Also removed beforeSplice and afterSplice in favor of just plain splice which is the same as afterSplice used to be - beforeSplice was never used and it was making things more complex looking than needed
Change-Id: Icbbc57eac73a2a206ba35409ab57b3d1a49ab1a5
* Moved node tree assertion to ve.dm.example
* Added rebuildNodes test
* Fixed some typos in rebuildNodes
Change-Id: I4853ded4b062aaa3758435093368bc23667ca3bf