Release/1.6.1 (#197)

* update for patch release 1.6.1

* update for changes to change log

* don't patch user profile service start

Author: thomaszurkan-optimizely

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Optimizely Android X SDK Changelog
 
+## 1.6.1
+April 25, 2018
+
+- Release 1.6.1
+
+This is a patch release for 1.6.0 and 1.5.1 Optimizely SDKs.  
+
+### Bug Fixes
+* Fix for the following issue:
+https://issuetracker.google.com/issues/63622293
+Our github issue is [here](https://github.com/optimizely/android-sdk/issues/194).
+The JobWorkService was probably destroyed but we didn't cancel the
+processor. It causes an exception in dequeueWork in our JobWorkService.
+We wrapped the dequeueWork with a try/catch and are also now cancelling the background task in onDestroy.
+
+* Fix for possible error when loading logger via dagger (fall back logger provided).
+
 ## 2.0.0-beta1
 
 March 29th, 2018