updates for release 2.1.1 (#228)

Author: thomaszurkan-optimizely

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Optimizely Android X SDK Changelog
 
+## 2.1.1
+October 3nd, 2018
+
+This is a patch release.
+
+### Bug Fixes
+Filters out attributes with null values from the event payload (via upgrade to Optimizely Java SDK 2.1.3
+
+Fix Optimizely builder to user DatafileConfig instead of deprecated project id.
+
+Update packages for gson, Jackson, and slf4j.
+
+Update credits
+
 ## 2.1.0
 August 2nd, 2018
 

build.gradle

@@ -53,7 +53,7 @@ ext {
     build_tools_version = "27.0.0"
     min_sdk_version = 14
     target_sdk_version = 26
-    java_core_ver = "2.1.2"
+    java_core_ver = "2.1.3"
     android_logger_ver = "1.3.6"
     support_annotations_ver = "24.2.1"
     junit_ver = "4.12"