add particle Performance Test
add files
Merge branch 'particle' of https://github.com/super626/cocos2d-x into particle

Conflicts:
	tests/cpp-tests/proj.win32/cpp-tests.vcxproj
	tests/cpp-tests/proj.win32/cpp-tests.vcxproj.filters
fix warning on IOS
add include file
annotation io.h
modify materials and textures search folder
Merge branch 'particle' of https://github.com/super626/cocos2d-x into particle
Merge pull request #201 from songchengjiang/particle

Particle optimization