update installer

templates/installer/config.html

@@ -87,6 +87,9 @@
 	<legend>Miscellaneous</legend>
 		<label for="secure_trip_salt">Secure trip (##) salt:</label> 
 		<input type="text" id="secure_trip_salt" name="secure_trip_salt" value="{{ config.secure_trip_salt }}" size="40">
+
+		<label for="more">Additional configuration:</label>
+		<textarea id="more" name="more">{{ more }}</textarea>
 	</fieldset>
 
 	<p style="text-align:center">