* add www/p5-CGI package which is deprecated in CORE and will be removed
   in perl 5.22,
 * rename xerces-c2-devel port to xerces-c2 to avoid needing to fix our
   scripts that check for a particular package

Big changes a comin' to try to get us back on the supported path.

 * perl 5.14 -> 5.20
 * mysql 5.1 -> 5.5
 * php 5.4   -> 5.6
 * tcl 8.4   -> 8.6
 * number of vim patches up to 683.

Not everything tested yet, but getting there.

Specific changes:

 * New install/ports directory. New packages for FreeBSD 10.1 are version
   6.1. Cleaned up the ports' Makefiles getting rid of conditionals for
   all older versions. Also got rid of ports we don't use. Old ports tree
   is now install/oports.

 * Install script changes. Make sure /usr/bin/perl and /usr/local/bin/python
   links exist. Ports no longer make these but we use them in '#!'. Changes
   to mysql install and startup script--mysql has changed a LOT since we did
   the support in 4.x. Create syslog entry for named.log. Make sure php.conf
   loads the legacy "mysql" module rather than using "mysqli".

 * Elabinelab support. reflect new packages, remove all old packages
   (except perl) before installing new versions, install "extras" package,
   make sure sendmail cert get regenerated, make sure /usr/bin/perl link
   exists, make sure /usr/local/bin/python link exists.

 * Custom ports. otcl and xerces-c2 have both been removed from the ports
   tree as of Q2 2015. ipmitool-devel is a port for the latest version of
   ipmitool. The FreeBSD port is still a rev behind here. We need the
   newer version as it appears to make our SOL consoles more stable.

 * Random. Fixed prerender as neato output has changed again. Tweak to
   sslxmlrpc_server to reflect change in an underlying library. Tweak to
   db/libdb.py.in to turn on autocommit which matters now as mysql 5.5 will
   hang on a metadata lock otherwise. Remade eventsys perl/python stubs
   with SWIG 2.0. SWIG 1.3 did not produce working stubs for perl 5.20.

Specific un-changes:

 * Apache is still at 2.2. I lack the guts and skilz to upgrade to 2.4.

 * Xerces library is still at (now unsupported) 2.8. Assign will need
   changes before we can move to 3.x.

 * Python is still 2.7.

Thanks to Keith Sklower for all the work he did converting ports!

Tipserv port only includes libtelnet which is only needed for the icebox,
so this port is not "linked in" to the documentation yet and is not required
anywhere but on our PRObE cluster.

Added a couple of missing ports to "boss" and "extras".

It has been removed entirely from the FreeBSD ports tree and we still need
it because it has a dhclient which takes multiple interfaces on the command
line (the current version just takes one interface). We should move to the
new version, but I am not up to that yet...

Mostly this means a new package set emulab-*-3.1 and some corresponding
tweaks to the install scripts and elabinelab scripts.

PLEASE NOTE: a 7.3 install uses PHP5, Perl 5.10.1 and Python 2.6.

to get recreated correctly.  So have ports-install apply a patch (though
it doesn't automatically recreate the INDEX as that takes forever...)