Rename provisionFile property to provisioningProfile.

This is what these are actually called.

Change-Id: Ifae520b02fa39368875111a42f393d79ac7fbf6f
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Clean up prepare script of IPA Rule.

Change-Id: Icafcf2edbb92217643a81fd747e803139f950424
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>