Fix box name
Make jetpack inclusion explicit

We already had jetpack included via the Developer plugin, but
let's make that explicit here.

Fixes #33
Don't upgrade all installed packages

The ones we care about will be up-to-date because we're installing
the latest versions. This makes the intial Puppet run much faster.

Related #34
Add an overview and Vagrant Primer to the README

Fixes #35
Install postfix so email works
WP-CLI wasn't finding config files because it was looking in the directory where wp-cli.php lives instead of the directory where wp-config.lives
Merge pull request #41 from joshkadis/master

Use the direct path to local config files
Reorg WordPress puppet script

Move the WordPress installation stuff to the top because it's probably
going to change more and is more directly relevant. The WP-CLI stuff
and other utility ops that aren't going to change very often are moving
to the bottom.

Also, auto-installed plugins are now listed in an array. Just add the
plugin slug to the `$plugins` array to auto-install it.

Adds mrss - fixes #38
MOAR COMMENTS

Also move the import of everything under `apt-get update` because
that's the order stuff actually happens