- add dllexport and fix some linker error for windows

- add includes
- fix gl function names (from no_ext to arb extension)
- rearrange includes, so that glew.h is included before gl.h (through qt5.0) is included
- add some missing file properties

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@19018 383ad7c9-94d9-4d36-a494-682f7c89f535