* pmailsort.el: Sync with pmailsort.el.

* pmailsort.el: Sync with pmailsort.el.
(pmail-sort-messages): Insert two newlines at the end of the
message if they do not exist.

* pmailmm.el: Require mail-parse.
(pmail-mime-show): Don't use removed function
pmail-header-hide-headers.
(pmail-mime): Use pmail-msgbeg and pmail-msgend instead of removed
pmail-desc-* functions.

* pmailkwd.el: Sync with rmailkwd.el.

* pmailout.el: Sync with rmailout.el.

* pmailedit.el: Sync with rmailedit.el.
(pmail-edit-current-message): Remove deleted function
pmail-msg-is-pruned.

* pmaildesc.el: File deleted.

* pmail.el (pmail-get-header): Call pmail-swap-buffers-maybe.
(pmail-retry-failure): Remove call to non-existent function
pmail-clear-headers.
(pmail-message-labels-p): New function.