Bugfix.

Running Apache in the foreground was preventing the next lines of the start.sh script from being actually executed: the Nominatim updates were not operational!

nominatim-3.1/start.sh

 #!/bin/bash
 service postgresql start
-/usr/sbin/apache2ctl -D FOREGROUND
+/usr/sbin/apache2ctl start
 
 ## Set up nominatim updates ###