Squashed commit of the following:

commit f5f85ea2e7d8478ef043ef40a4b867e00c316ae4
Author: Arian Xhezairi <arian@xhezairi.com>
Date:   Fri Jan 3 19:03:25 2014 +0100

    Updated upgrade.php with all the new Config settings.

commit 5fe1a15dcef0dfe59fe203355057ed82134c7e6d
Author: Arian Xhezairi <arian@xhezairi.com>
Date:   Fri Jan 3 18:03:46 2014 +0100

    Updated PHP version rrequirementerment.

    Now PHP 5.3.0 is the minimum requirement.

commit f7420b7e1b40159c37c72862a7c8c407d39b56e2
Author: Arian Xhezairi <arian@xhezairi.com>
Date:   Wed Jan 1 20:31:02 2014 +0100

    Show Publish button when editing Draft posts only.