Update to version 2.2.0-beta.1

Author: aoberoi

README.md

@@ -21,7 +21,7 @@ When you use Maven as your build tool, you can manage dependencies in the `pom.x
 <dependency>
     <groupId>com.opentok</groupId>
     <artifactId>opentok-server-sdk</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.0-beta.1</version>
 </dependency>
 ```
 
@@ -31,7 +31,7 @@ When you use Gradle as your build tool, you can manage dependencies in the `buil
 
 ```groovy
 dependencies {
-  compile group: 'com.opentok', name: 'opentok-server-sdk', version: '2.2.0'
+  compile group: 'com.opentok', name: 'opentok-server-sdk', version: '2.2.0-beta.1'
 }
 ```
 

src/main/java/com/opentok/constants/Version.java

@@ -1,5 +1,5 @@
 package com.opentok.constants;
 
 public class Version {
-    public static final String VERSION = "2.2.0-pre";
+    public static final String VERSION = "2.2.0-beta.1";
 }