minor cleanup in patch_parents_children_entries commenced
revamped path_parents_children_entries stopped. Slightly better, doesn't wrongfully give the impression that node_left and node_right may be inserted into two different nodes when that is impossible. (though the operation MAY trigger a split)
begun stubbing out some of the IO commands expected to form the bridge to the device. Will need to refine these and expand AoE driver to branch on new custom commands most likely carried via bi_private in the bio.
fixed remove tree prototype
added a read function to the interface