Missing `#include <cstdint>` in freetypelib.h?

[amosnier]

Really not a big deal but I had to add that #include in order to avoid a compilation error. In my experience, what's provided by system header files varies between compiler versions, and since uint32_t is used in the freetypelib.h, maybe the source code is not compliant with the C++ standard without that #include.

Other than that, works like charm on my Ubuntu machine. Beautiful! Thanks.