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

src/Bullet3OpenCL/RigidBody/kernels/batchingKernels.h

@@ -352,5 +352,4 @@ static const char* batchingKernelsCL= \
 "\n"
 "\n"
 "\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/batchingKernelsNew.h

@@ -242,5 +242,4 @@ static const char* batchingKernelsNewCL= \
 "	\n"
 "	//return batchIdx;\n"
 "}\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/integrateKernel.h

@@ -106,5 +106,4 @@ static const char* integrateKernelCL= \
 "		\n"
 "	}\n"
 "}\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/jointSolver.h

@@ -877,5 +877,4 @@ static const char* solveConstraintRowsCL= \
 "		}\n"
 "	}\n"
 "}\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/solveContact.h

@@ -493,5 +493,4 @@ static const char* solveContactCL= \
 "	\n"
 "    \n"
 "}\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/solveFriction.h

@@ -515,5 +515,4 @@ static const char* solveFrictionCL= \
 "	\n"
 "    \n"
 "}\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/solverSetup.h

@@ -1,6 +1,5 @@
 //this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
 static const char* solverSetupCL= \
-"\n"
 "/*\n"
 "Copyright (c) 2012 Advanced Micro Devices, Inc.  \n"
 "\n"
@@ -666,5 +665,4 @@ static const char* solverSetupCL= \
 "\n"
 "\n"
 "\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/solverSetup2.h

@@ -626,5 +626,4 @@ static const char* solverSetup2CL= \
 "\n"
 "\n"
 "\n"
-"\n"
 ;

src/Bullet3OpenCL/RigidBody/kernels/updateAabbsKernel.h

@@ -1,6 +1,5 @@
 //this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
 static const char* updateAabbsKernelCL= \
-"\n"
 "#define SHAPE_CONVEX_HULL 3\n"
 "\n"
 "typedef float4 Quaternion;\n"
@@ -195,5 +194,4 @@ static const char* updateAabbsKernelCL= \
 "		}\n"
 "	} \n"
 "}\n"
-"\n"
 ;