[Observium] Problems after SVN upgrade

We are currently running:

Observium 0.14.11.6003 Apache 2.2.22 (Ubuntu) PHP 5.3.10-1ubuntu3.15 MySQL 5.5.40-0ubuntu0.12.04.1 SNMP NET-SNMP 5.4.3 RRDtool 1.4.7

I navigated to the /opt/observium directory and ran:

svn update

This succeed then I proceeded to run:

root@observium:/opt/observium# ./discovery.php -u Observium 0.14.11.6003 Discovery

PHP Fatal error: Call to undefined function print_obsolete_config() in /opt/observium/discovery.php on line 48

At this point everything seemed fine so far as logging in, the graphing etc. I then rebooted the server for good measure. When it came back up, I could hit the login screen and authenticate, but beyond that, a blank screen. Any ideas?