Refactor

rewrote index file to use a boot function instead of multiple
functions. Moved render() to _sff.php
New Updates

* included demo config file
* updated home.php page and assets via http://tympanus.net/codrops/
* icons from http://www.flaticon.com/
* Tutorial page
Merge branch 'master' of https://github.com/richtestani/Single-File-Framework