version 2.0pre_alpha.0 release (Linux)

I'm in the process of re-writing the Linux version of Html SymboliZe in C, and so far I've managed to create a working implementation of hsz, but I can't even think of how to approach unhsz at the moment. So I've decided to go ahead and deploy this pre_alpha release in the meantime. I haven't uploaded the tarball yet, but as soon as I get the Makefile ready to go and everything, then I'll upload the new tarball.