- #505278 by Michelle, merlinofchaos - Provide backward compatibility with previous method to build Panels 3 subtype names for fields.

- #514452 Add new argument $node to content_access() to enhance the context for hook_field_access().

  Implementation of fieldgroup_view_group() that can be used to render field groups.

#414298 Rearranging panels includes files for consistency with views files and needs of panels module, per IRC conversation with Earl and Michelle.