fix bug when removing the root node of a tree

add test for simple destructor in trees - fixes #436

complete implementation of remaining high level tree functions

implement cxTreeInsert family of functions

add cxTreeSubtreeDepth()

implement cxTreeCreate family of functions

add functions to link/unlink nodes manually

(0) -300 -100 -30 -10 -7 +7 +10 +30 tip

mercurial