New tree traversal method: process two columns at a time instead of the entire tree at once.
Trying new method using a structure of strormID{stroke elements}.
Corrections on new tree_traversal.
Renamed and slight restructuring.
Added restructuring, removed unused code.
Renamed traverse variables.
Removed the histogram data (unneeded) and the invertedGraph construction to use > 0 instead of == 1.
Fixed the bug in creating the inverted tree: it was storing the results in the wrong indices.
Merge branch 'new_tree'

Conflicts:
	tree_traversal.m
Updated tree traversal text.