Do not build examples to ebin dir

It is really irritating
More win64 fixes

Remove long usage, long is still 32b on win64.

Update Readme description with mingw64-gcc link problems,
it will link without errors with MSVC libs but seg fault in runtime.
exported more clu functions, updated cl_basic to skip some crashing fields
Make it more version agnostic

Load OpenCL 1.2 functions dynamicly

Because otherwise I can not build the dll on OpenCL 1.2 and
run it on nvidia cards which only supports 1.1

Make device versions steer function version calls
Fix version
Fix type warnings (on windows)