Upgrading Evergreen 1.4 to 2.0

Install new and upgraded prerequisites. The easiest way to do this is to use the Makefile.install prerequisite installer; it will skip any prerequisites that are already installed on your system. Run the following command as root, where _distribution_ is one of debian or ubuntu:
```
make -f Open-ILS/src/extras/Makefile.install _distribution_
```

Install OpenSRF 1.2.0. It's basically:

./configure --prefix=/openils --sysconfdir=/openils/conf
make
make install

Install Evergreen 1.6.

./autogen.sh
./configure --prefix=/openils --sysconfdir=/openils/conf
make
sudo make STAFF_CLIENT_BUILD_ID=foobar install
 
# Build live-db-setup.pl for the cgi-bin bootstrapping scripts
# and offline-config.pl for the offline staff client data uploader
sudo perl Open-ILS/src/support-scripts/eg_db_config.pl \
  --create-bootstrap --create-offline --user evergreen --password evergreen \
  --hostname localhost --port 5432 --database evergreen
 
# Change all files to be owned by the opensrf user/group
chown -R opensrf:opensrf /openils

Upgrade the database
1. From version 1.4.0.6 NOTE: it is recommended that you shut down Postgres and make a copy of the data directory in order to restore to Evergreen 1.4 if anything goes wrong
```
# Upgrading from Evergreen 1.4.0.6:
psql -U evergreen -h localhost -f Open-ILS/src/sql/Pg/1.4.0.5-1.6.0.0-upgrade-db.sql
```

cp /openils/conf/oils_web.xml.example /openils/conf/oils_web.xml (needed for acquisitions templates)

Update opensrf_core.xml and opensrf.xml. A naive way would be to copy the new example files (/openils/conf/opensrf_core.xml.example and /openils/conf/opensrf.xml) and then update the username / password / hostname info and other customizations you might have made. The following step will automatically propagate database usernames and passwords into opensrf.xml:
```
# Update opensrf.xml with the database connection info
sudo perl Open-ILS/src/support-scripts/eg_db_config.pl --update-config \
  --service all --user evergreen --password evergreen --hostname localhost \
  --port 5432 --database evergreen
```

(In the final release tarball, this step should not be necessary). Install the Dojo toolkit.

Run the following commands as opensrf:

wget http://download.dojotoolkit.org/release-1.3.2/dojo-release-1.3.2.tar.gz
tar xzf dojo-release-1.3.2.tar.gz

Then run this command as root:

cp -r dojo-release-1.3.2/* /openils/var/web/js/dojo/.

Update Apache configuration:
1. Update /etc/apache2/startup.pl with the example from Open-ILS/examples/apache/startup.pl
2. Update /etc/apache2/eg_vhost.conf with the example from Open-ILS/examples/apache/eg_vhost.conf
3. Update /etc/apache2/sites-available/eg.conf with the example from Open-ILS/examples/apache/eg.conf