update changelog

update changelog

Author: randdusing

CHANGELOG.md

@@ -1,9 +1,10 @@
-## master - 2016-04-06
+## master - 2016-05-01
 - wasConnected helper function
 - Improved subscribe with Android. No longer need to specify whether notification or indication
 - Read, write, subscribe, unsubscribe, readDescriptor, writeDescriptor queueing for Android [\#263](https://github.com/randdusing/BluetoothLE/issues/263), [\#153](https://github.com/randdusing/BluetoothLE/issues/153)
 - Everything now runs on the single WebCore thread with Android. It should prevent issues with race conditions
 - Fix issue with writeDescriptor on Android
+- Fix issue with UUID validation on iOS
 
 ## 4.0.0 - 2016-03-30
 - Update OS X