Make MySQL optional in vhost role
Correct default configs for MySQL and nginx
Remove php.conf.j2 nginx include template as its no longer used.
Fix slow network performance causing very slow load times for certain actions such as curl.
Set nginx to auto detect worker processes based on CPU cores by default.
Turn mysql and php off by default
Make deploy username default to 'deploy'
Add option for WordPress and fastcgicache in vhosts.