add renderbuffer
scale bugfix
bugfix: don't ignore zw
add sprite_matrix
Merge pull request #5 from ejoy/worldmatrix

Worldmatrix
get world pos by sprite_matrix
Merge branch 'worldmatrix'
修正 renderbuffer中对象的个数不能达到MAX_COMBINE(1024)个的问题
aabb function return local space aabb for default
Merge branch 'master' of github.com:ejoy/ejoy2d
change unix CR
use struct vertex_pack instead of float[4]
iOS example add new c files to compile list
use unsigned short for texture coord
change unix cr
fix texture blend coord error
remove redundant type cast
add necessary files to mac example
change to Bundle Res
Merge pull request #6 from ejoy/texturecoord

Texturecoord optimize