Move version to 22.

Change-Id: I0ad49f74ccbd9f0855b6e2548ec1f8f874260aec
diff --git a/builder/build.gradle b/builder/build.gradle
index 5721dd5..7087a6a 100644
--- a/builder/build.gradle
+++ b/builder/build.gradle
@@ -2,7 +2,7 @@
 apply plugin: 'maven'
 apply plugin: 'signing'
 
-project.ext.baseAndroidVersion = "21.2-SNAPSHOT"
+project.ext.baseAndroidVersion = "22.0-SNAPSHOT"
 
 configurations {
     fakeMaven