@new branch canvas2d
@write some log code for easy debug
@add some header file
@add some header file for design
@add some design class
@write vfs and log module(%50)
@write log and vfs module(%60)
@统一代码风格和名称
@增加开源库libpng
@修改通用makefile文件，现在makefile更清晰简介
@changelog
@增加一些opengl光照的文档
@增加开源库kazmath
@增加开源库zlib
@增加Opengl接口文档
@增加Opengl光照文档
@add example folder
	1) add opengl folder
		a) add <<OpengGl Program Guide> folder
@add some document about opengl
@add some design class for font
@I make a mistake,there too many limits to uses tinyjpeg library,so i
needto find another open source jpeg decoder library instead of
tinyjpeg.
@add libpng libary
	1) write code to read and write png format file
@add zlib libary
@add vs2008 projects
@opengl buffer object document
Merge branch 'canvas2d' of github.com:NosicLin/faeris into canvas2d