[UPD] SHA-1 Library 1.1.0

[Shao Sean]

I wrote the original about a year ago, but it seems that it was broken 
on the Mac (sorry), well now that I finally have a Mac in my place it's 
easier to do the testing :-)

This library now works on Mac OS X and Windows and uses the new bit 
math operators (as well as some corrections to the internal math). The 
bit math functions are included in this library so no need to have the 
bitwise library loaded.

Mark Smith's library seems to be quicker (I'll have to dissect and find 
out why.. mwahaha ;-)

www.shaosean.tk