Make sure MIME crypto wrappers add/update crypto state classes
Fix a few things about how keys are attached
Fix the tests, add tests to be sure headers are cleaned
Fix inconsistent message generation code in PGP/MIME signed mail
Avoid mixed CRLF/LF in generated messages
Trivial cleanup to PGP attachment code
Simplify/fix VCard recording of sent keys, added tests, added fake gpg shim