Add freedombox-setup script for plinth.

This allow us to handle all the Plinth setup in one package.  I've
added one change from Pere's original commit: we disable Apache's
default site.  If the default site is enabled, Plinth doesn't load
correctly (we get 404 errors).

Makefile

@@ -22,7 +22,7 @@ predepend:
 	git submodule update
 	touch predepend
 
-install: default apache-install
+install: default apache-install freedombox-setup-install
 	mkdir -p $(DESTDIR)/etc/init.d $(DESTDIR)/etc/plinth
 	cp plinth.sample.fhs.config $(DESTDIR)/etc/plinth/plinth.config
 	mkdir -p $(DESTDIR)$(PYDIR) $(DESTDIR)$(DATADIR) $(DESTDIR)/usr/bin \
@@ -37,6 +37,9 @@ install: default apache-install
 	cp -r data/* $(DESTDIR)/var/lib/plinth
 	rm -f $(DESTDIR)/var/lib/plinth/users/sqlite3.distrib
 
+freedombox-setup-install:
+	install -m755 -D setup.d/86_plinth $(DESTDIR)/usr/lib/freedombox/setup.d/86_plinth
+
 uninstall:
 	rm -rf $(DESTDIR)/usr/lib/python2.7/plinth $(DESTDIR)/usr/share/plinth/ \
 		$(DESTDIR)/etc/plinth $(DESTDIR)/var/lib/plinth $(DESTDIR)/usr/share/doc/plinth/ \

setup.d/86_plinth

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Enable Plinth.
+
+echo "Configuring Plinth..."
+
+make-ssl-cert generate-default-snakeoil
+a2enmod ssl
+a2enmod rewrite
+a2enmod proxy
+a2enmod proxy_http
+a2dissite default
+a2ensite plinth.conf
+
+echo "Done configuring Plinth.."