gnus-sum.el (gnus-read-header): Prefix group when entering into registry.
message.el (message-bury): Make `buffer' optional;
 (message-send-and-exit): Don't pass `buf' so as to hide the buffer
 (bug#14085)
mml2015.el (mml2015-epg-sign): Add name="signature.asc" (Bug#13465)
Revert "message.el (message-bury): Make `buffer' optional;"

This reverts commit 1d2c4fbb9bdc1078d1727b27139e4df5ba7cb2cb.
gnus-art.el (gnus-article-describe-bindings): Require help-mode because of let-binding help-xref-following (Bug#14356)
lisp/ChangeLog: Remove `(Bug#14356)' in the 2013-05-07 entry
lisp/ChangeLog: Revert last bogus change
gnus-art.el (gnus-article-describe-bindings): Add a comment
Fix a bunch of custom types, and more