Update changelog

Changelog.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## v0.3.3 - 20th February 2019
+ - Updated to use new database structure
+
 ## v0.3.2 - 10th February 2019
  - Bugfix: Default to something sensible when opening the device graph in certain cases
  - Add new quick time buttons below device graph to change displayed time window

client_src/js/DeviceReadingDisplay.mjs

@@ -196,6 +196,7 @@ class DeviceReadingDisplay {
 			// Wrap it in an Error instance if needed
 			if(typeof error == "string")
 				error = new Error(error.length == 0 ? "An unknown error has ocurred. It's probably on the server." : error);
+			
 			alert(error.message);
 			console.error(error);
 			return null;