fix Issue #14
set global OS in lua
去掉void*的隐式转换
Merge pull request #15 from actboy168/cloudwu-master

去掉void*的隐式转换
sprite support switch program
Merge branch 'master' of github.com:cloudwu/ejoy2d into public
support switch program
bugfix: iOS/OpenglES don't support GL_BGRA
bugfix: bind must after link
iOS sample

Signed-off-by: rainfiel <rainfiel@gmail.com>
fix xcodeproj error
particle example (examples/ex03.lua)
ex03 support mingw/posix
support scissor and pannel
fix shader compile error in MACOSX.
rename scissor to ex04
Merge branch 'master' of ssh://oa.ejoy.com/ejoy2d
simplify ex03
Merge pull request #16 from Tsiannian/master

fix shader compile error in MACOSX.
fix typo (macosx)