Merge pull request #49 from SiftScience/3.1.0_changes_readme_updates

updating the README.md and CHANGES.MD for v3.1.0

Author: rsomavarapu-sift

CHANGES.MD

@@ -1,3 +1,7 @@
+3.1.0 (2019-07-17)
+=================
+- Add support for `$bookings` complex field to `$create_order` and `$update_order` events
+
 3.0.0 (2019-05-14)
 =================
 - Add account id and OkHttpClient to constructor

README.md

@@ -13,13 +13,13 @@ Java 1.7 or later.
 <dependency>
     <groupId>com.siftscience</groupId>
     <artifactId>sift-java</artifactId>
-    <version>3.0.0</version>
+    <version>3.1.0</version>
 </dependency>
 ```
 ### Gradle
 ```
 dependencies {
-    compile 'com.siftscience:sift-java:3.0.0'
+    compile 'com.siftscience:sift-java:3.1.0'
 }
 ```
 ### Other