Removed problematic GL_TYPE functions (glext.h), see issue 41
Fixed the CMake config file (see issue 40)
Added glew initialization in all demos
Added proposed  patch for CMake config and MSVC, not tested though
Fixed generated header to test for c++
Added demo-distance-field-3.c to show high-resolution distance field computation
Fix typo
Added distance-field-3.frag (previously forgotten)
Fixed font directory upper cases (issue 43)
Fix various issue (see issue 45)
Put code to C89 norm and fix CMakefile