Cleanup/Refinement

* Adds swftp-ftp and swftp-sftp commands. Has all the same options as running with
  twistd. It will not daemonize for you. Resolves #4
* Adds url, license to setup
* Adds README.md to data files. Resolves #5.
* Moves default config place to /etc/swftp from /etc/swift. Resolves #2
* Installs example /etc/swftp/swftp.conf (with defaults commented out) Resolves #3
Merge branch 'master' of github.com:softlayer/swftp