Log Message:
-----------
Document new pg_ctl 'kill' command, specificially for Win32.
Modified Files:
--------------
pgsql-server/doc/src/sgml/ref:
pg_ctl-ref.sgml (r1.26 -> r1.27)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/ref/pg_ctl-ref.sgml.diff?r1=1.26&r2=1.27)