Update Vagrantfile

Update Vagrantfile. Add a setup script to create swap partition. Add
setup script for future Python MySQL scripting. Add test
database('test_baking') in MySQL setup script. Add memcached packages to
PHP setup script.
Switch caching from File to Memcached

Switch caching from File to Memcached. Change DebugKit caching to also
use Memcached. Change 'debug' level to 2.
Add test database
Change AppModel recursive to -1
Add MailToHelper

Add MailToHelper to obfuscate email address to robots.
Add img assets

Add img assets for DigitalOcean and GitHub logos.
Add Google Analytics javascript code
Add phpinfo() page

Add phpinfo() page for *development* only and remove for production.

Remove for production!

    - webroot/php.php
Update default layout and css