Unbreak on FreeBSD-11.

Submitted by:	Stas Timokhin <devel (at) stasyan.com>
- Install missing file latency.txt
- Bump PORTREVISION

PR:		195673
Submitted by:	meta+ports@vmeta.jp (maintainer)
Adding mail/panda-cclient and mail/panda-imap.

Since Mark Crispin left the UW, development on UW-IMAP paused. Mark
however continued developing the toolkit under the name Panda-IMAP.
Since Mark passed, Jonathan Abbey created a project on GitHub, by
concatenating all of the public releases of UW IMAP with the last
version of Panda IMAP.

Add conflict lines with the original ports.
Include postgresql loadable module and related sample SQL files into
plist.

PR:		195718
Submitted by:	maintainer (5u623l20@gmail.com)