Merge in database security branch
Patches applied:

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--base-0
   tag of stuart.bishop@canonical.com/launchpad--devel--1--patch-38

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-1
   Change ownership of all tables to user postgres

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-2
   Grant permissions from config file

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-3
   Merge from Rocketfuel

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-4
   Add more tables to db security config

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-5
   Security definitions ready for testing

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-6
   Maintain security on sequences

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-7
   Switch on dbsecurity and make librarian tests connect as the librarian user so they pass

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-8
   star-merge from Rocketfuel

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-9
   Update security for new tables

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-10
   Merge from Rocketfuel

 * stuart.bishop@canonical.com/launchpad--dbsecurity--1--patch-11
   Update security.cfg for membership table rename