[Emacs] Visit snippets in help map.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Snippets] Move @author field in fundoc snippet.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Snippets] Add parameter snippet.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] gnus: Signal urgency on frame recently showing gnus.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] sp: M-K to kill surrounding sexp.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>