added (and stripped) a simple C/C++ preprocessor (written in Lua), so the stringifier can handle the #include directive,

and embed the included files directly in the stringified files.
We need this, because we start sharing struct definitions and code between C/C++ and OpenCL (and potentially other languages)
preprocessor is from http://github.com/willsteel/lcpp

btgui/OpenGLWindow/Shaders/pointSpritePS.h

@@ -1,6 +1,5 @@
 //this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
 static const char* pointSpriteFragmentShader= \
-"\n"
 "#version 330\n"
 "precision highp float;\n"
 "\n"
@@ -37,5 +36,4 @@ static const char* pointSpriteFragmentShader= \
 "	float diffuse = max(0.0, dot(lightDir, N));\n"
 "	color  = vec4(ct * diffuse, at * af);	\n"
 "}\n"
-"\n"
 ;