Restructure sources.
Add .gitignore
Add a "make tag" target.
Update copyright info in LICENSE.txt.
Add asdf.lisp and setup.lisp from quicklisp-bootstrap.
Add QL:DIST-VERSION and QL:DIST-URL.
Intern DIST-VERSION and DIST-URL in QL-DIST so they can be re-exported by QL.
Update version.txt to 2014-01-27-alpha-1.
Don't allow tagging a dirty repo.