Set head to use Spree 2.3

Signed-off-by: Nathan Lowrie <nate@finelineautomation.com>
Paperclip now requires explicit content type validation on attachments.

Signed-off-by: Nathan Lowrie <nate@finelineautomation.com>
Had to move blog partials off on their own to get this to work.

Signed-off-by: Nathan Lowrie <nate@finelineautomation.com>
Changed views to use spree's new translation method.

Signed-off-by: Nathan Lowrie <nate@finelineautomation.com>