Support new-style Novelist for TPAC.

Updates the Novelist loading script to use the newer Novelist API.

Includes minor change to example/apache/eg_vhost.conf for environment
variables.

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Signed-off-by: Ben Shum <bshum@biblio.org>
Enable dojo in TPAC if using newer Novelist API

Enable dojo if the apache variable for Novelist URL is set. This avoids
issues such as needing to have dojo enabled via either AutoSuggest or
Google Books preview, which may not be enabled by every TPAC.

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berick@esilibrary.com>