Changes for Crypt::ScryptKDF
TODO:
        - solaris: cannot find include file: <stdint.h> - http://ppm4.activestate.com/sun4-solaris/5.14/1400/M/MI/MIK/Crypt-ScryptKDF-0.008.d/log-20130618T103930.txt
        
0.009   2015/06/21
        - fix for https://rt.cpan.org/Public/Bug/Display.html?id=100721
        - scrypt_hash() - $salt can be be specified as a reference to scalar 
          number e.g. $salt=\24 means that salt will be 24 randomly generated bytes
        - MSVC compatibility (again)

0.008   2013/06/18
        - tries Crypt::PRNG::random_bytes()
        - MSVC related fixes

0.007   2013/06/17
        - somehow works with perl 5.6.2
        - improving CPANTS score

0.006   2013/04/19
        - fixing cpan testers failure on netbsd

0.005   2013/04/17
        - fixing cpan testers failure on pre 5.10.1

0.004   2013/04/09
        - documentation fixes
        - exported function random_bytes

0.003   2013/04/05
        - ready for CPAN

0.002   2013/04/02
        - compatibility with older Module::Build

0.001   2013/03/21
        - initial version