Some fixes to make this formula work on Ubuntu 14.04 LTS

In an [Options](http://httpd.apache.org/docs/2.2/mod/core.html#options) directive, either all items must have a + or -, or none of them may. This appears to have been a warning in Apache 2.2, but it is now an error in Apache 2.4 and prevents a service reload.

Also, the default site is now known as ```000-default```, instead of simply ``default``.