* New upstream. * debian/control, debian/copyright, debian/mit-scheme-doc.*, debian/mit-scheme.install, debian/rules, Upstream has removed cover texts from documentation licenses, so merge packages mit-scheme and mit-scheme-doc back together. * debian/compat: Bump to current version. * debian/control: Bump standards-version to current and make necessary changes. * debian/rules: Fix lintian warnings.