Fix case, so that cross-compilation targeting Windows could be a possibility. The filename (the path in general) in the include directive now has the exact same case as the file's filename (the system path in general).
Fix redefinition-of-struct-timezone error, when compiling for Windows.
Make sleep() a macro when compiling for Windows.
Fix time(NULL) undeclared when compiling for Windows.
Fix time(NULL) and Sleep() undeclared when compiling for Windows.
Fix time(NULL) undeclared again when compiling for Windows.
Merge pull request #165 from xnakos/win32-build

Win32 build