bug 00001# description: add libCommon/utils/ directory

	[bug number  ] 00001
	[root cause  ] add thread model
	[changes     ] add file
	[side effects] none
	[reviewers   ] none
	bug #00002 description: modify file filter

	[bug number  ] 00002
	[root cause  ] commit file too much
	[changes     ] add file filter
	[side effects] none
	[reviewers   ] none