0.04	Thu Nov 20 12:13:09 JST 2008
		- made more flexible configuration (thx to masaki)
0.03	Wed Nov  6 18:00:32 JST 2008
		- modified Changes
0.02	Fri Jun  6 11:37:31 JST 2008
		- fully refactored
		- weaken context (thx to typester)
0.01	Thu Jun  5  0:32:10 JST 2008
		- first release