Merge ".conf suffix for the horizon config on Fedora"

lib/horizon

@@ -106,13 +106,13 @@ function init_horizon() {
     sudo mkdir -p $HORIZON_DIR/.blackhole
 
     HORIZON_REQUIRE=''
-    local horizon_conf=/etc/$APACHE_NAME/$APACHE_CONF_DIR/horizon
+    local horizon_conf=/etc/$APACHE_NAME/$APACHE_CONF_DIR/horizon.conf
     if is_ubuntu; then
         # Clean up the old config name
         sudo rm -f /etc/apache2/sites-enabled/000-default
         # Be a good citizen and use the distro tools here
         sudo touch $horizon_conf
-        sudo a2ensite horizon
+        sudo a2ensite horizon.conf
         # WSGI isn't enabled by default, enable it
         sudo a2enmod wsgi
     elif is_fedora; then