+ added GetShader query function for engine's shader resource
+ added D3D11 compute shader and UAV texture
- (untested) added UAV texture to OpenGL
+ added compute shader & program pipeline for GL. added include handler for shader compiling
+ added (untested) UAV buffer. indirect draw. changed API functions' names
-updated android build
+added structured buffer, solve input-output problem with UAV in D3D11.
+added GL debug context. +added GL compute shader test. +added compute shader tool's compiling option of GLSL
+ added compute pass in effect file
+ added shader stage version of SetUniformBuffer & SetTexture
+added UAV render target. -default mip filter in effect script is none
- reorganize samples folder
+ added base code for samples. updated camera implementation
+ added HQEXT_CG predefined macro to CG shader. updated CG2GLSL lib
-change the way texture UAV is set. updated base code for samples
+added floating point texture format for traditional texture creation
- added integer vertex attribute fetching to GL device
support floating point pixel buffer in D3D11
- minor changes
- cleaner API