May 31

add demo: heapify and merge sort
connected graph in random_factory
rewrite loop
rewrite loop -> funcmodule
Merge branch 'master' of https://github.com/zmeng3/psudo into zmeng3

Conflicts:
	structure/checkall.py
	structure/config.py
	structure/graph_mod.py
	structure/linkedlist_mod.py
	structure/matrix_mod.py
Add Demo and bin trees
-q=- =
Merge branch 'master' of https://github.com/zmeng3/psudo into zmeng3

Conflicts:
	structure/config.py
	structure/graphTest.py
	structure/graph_mod.py
	structure/linkedlist_mod.py
xml