Update MD5Deep

**Updated MD5Deep.**

The source code packages have been moved from Sourceforge to Github, which is reflected here. The way of building of the source code has also changed, which should be executed successfully here.

*SHA1SUM updated as well*.
Hmm. This could be frustrating. The ./configure doesn't actually appear or become active until you execute the new "sh bootstrap.sh" instruction. Would this be better if I fork the current MD5Deep Github, unpack the source code, execture sh bootstraph.sh myself and then package the resulting folder back into a .tar.gz source code package, enabling Homebrew to just execute the ./configure script that results?