Upgrade instructions

Install HTML::Widgets::SelectLayers 0.07 (or later)
Install Authen::Passphrase
Install Net::Domain::TLD
make install-perl-modules
As the freeside UNIX user, run freeside-upgrade username, passing the username of an internal Freeside user.
If freeside-upgrade hangs, try stopping Apache, all Freeside processes, and anything else connected to your database, especially on older PostgreSQL versions.
Run bin/freeside-migrate-events
make configure-rt
make install-docs (or make deploy if you've got everything setup for that in the Makefile)
mv /opt/rt3/etc/RT_SiteConfig.pm /opt/rt3/etc/RT_SiteConfig.pm.OLD; make install-rt
Perl module errors? Try make clean then make install-perl-modules then make install-docs or make deploy again
New packages/modules for RT 3.6.4: libxml-rss-perl libcalendar-simple-perl libgd-graph-perl libuniversal-require-perl libgd-text-perl

Currently known issues

action options don't get migrated automatically. this is bad. invoices will go out with wrong templates.
- agentnum needs special handling?
config/config-view.cgi gives error:

  error:   	Can't use an undefined value as an ARRAY reference at /usr/local/share/perl/5.8.8/FS/TicketSystem/RT_External.pm line 273.