2016-12-16 Yuanqiang Zou  <jerrytsou2001@gmail.com>

	Document synchronization and test outputs.

2017-01-10 Yuanqiang Zou  <jerrytsou2001@gmail.com>

	Modifiy documentaion and import a new package "doParallel"

2017-01-27 Yuanqiang Zou  <jerrytsou2001@gmail.com>

	Optimized the fuction "toigraph"
