#2636848 by ndf: Use drupal_static in edit-form relationship. 3x faster profile-edit page-load.
Fix issues with loading form by relationship.
Issue #2456793 by cmonnow: AJAX fields (e.g. image uploads) don't work in Profile2 Edit Page in Panels
Issue #2445201 by nielsdefeyter: Create profile2 instances if not existing yet, fixes WSOD error.
Page Manager implementation: profile2_view (fully working) profile2_edit (has General Form, single fields not working).