0.3.1 - initial source code hotfix release

Well, guess what, I had a few mistakes on that first release. Serves me right for kicking it out so late at night!

I'm still new to automake/autoconf/libtool, and the libtool way of versioning shared libraries threw me off. After I looked at the version numbers on the .so files and their symlinks, I released that wasn't how I wanted it done from the start. I also had some erroneous data in the pkgconfig file, as well. Both issues have been resolved, and the hotfix has been uploaded.