mod_imap only handles GET. Decline the rest so that, say, a PUT action

can be used.

Submitted by:	Jay Bloodworth <jay@pathways.sde.state.sc.us>
Reviewed by:	Brian Behlendorf, Dean Gaudet, Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79306 13f79535-47bb-0310-9956-ffa450edef68