Immproved code signing of IPAs

Squashed commit of the following:

commit c9f0dd52006ab2c8ca108f9661f07c5324e1c49e
Author: Alex Fish <fish@ustwo.co.uk>
Date:   Mon Jul 28 14:31:13 2014 +0100

    Bumping version number

commit 5e8cc128189abd3360f29dae124b1aa7bec4106a
Author: Alex Fish <fish@ustwo.co.uk>
Date:   Mon Jul 28 14:30:00 2014 +0100

    Removing need for ipa_profile config setting