* Update author email address.
 * Switch Ubuntu check to a non-zero-length-string check.
 * Add support for Debian 7.x numeric strings in /etc/debian_version
 * Add support for versions in OpenSuSE and SLES.
 * Updated inline-doc for download().
 * Added --smart-override to download() for use with HTTP/HTTPS.
 * Improved systemctl/service logic in the svc() method.
 * Add check for debian version files containing only the major/minor version.