Updated PGP documentation to reflect my patch.
Fixed code duplication problem in my installation of Ovidiu's patch.
Document the changes I already added.
Minor bug fix
Bullet-proof for a failure on a close which happened to me due to
Rewrote item (1) since almost all of it has been done, also made minor
Missing quote at end of line; probably my fault. Thanks to Vin Shelton
If doing a plain signature, disable usage of the pgp(mime) flag.