[DFDL-WG] Spec r22

I added all the bit-order material. I did not include any other changes since r21. http://redmine.ogf.org/dmsf_files/13328?download= Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com Please note: Contributions to the DFDL Workgroup's email discussions are subject to the OGF Intellectual Property Policy <http://www.ogf.org/About/abt_policies.php>