config endpoint to get device and universe configuration

dmx-web.js

@@ -56,6 +56,15 @@ function DMXWeb() {
 		res.sendfile(__dirname + '/index.html')
 	})
 
+	app.get('/config', function(req, res) {
+		var response = {"devices": DMX.devices, "universes": {}}
+		Object.keys(config.universes).forEach(function(key) {
+			response.universes[key] = config.universes[key].devices
+		})
+
+		res.json(response)
+	})
+
 	app.get('/state/:universe', function(req, res) {
 		if(!(req.params.universe in dmx.universes)) {
 			res.status(404).json({"error": "universe not found"})