Update api.txt file and bump version

Since it's a new feature, minor version bump is the right call

Author: rlazo

firebase-common/api.txt

@@ -39,6 +39,7 @@ package com.google.firebase {
     method public String? getDatabaseUrl();
     method public String? getGcmSenderId();
     method public String? getProjectId();
+    method public String? getRecaptchaSiteKey();
     method public String? getStorageBucket();
   }
 
@@ -51,6 +52,7 @@ package com.google.firebase {
     method public com.google.firebase.FirebaseOptions.Builder setDatabaseUrl(String?);
     method public com.google.firebase.FirebaseOptions.Builder setGcmSenderId(String?);
     method public com.google.firebase.FirebaseOptions.Builder setProjectId(String?);
+    method public com.google.firebase.FirebaseOptions.Builder setRecaptchaSiteKey(String?);
     method public com.google.firebase.FirebaseOptions.Builder setStorageBucket(String?);
   }
 

firebase-common/gradle.properties

@@ -1,3 +1,3 @@
-version=22.0.2
+version=22.1.0
 latestReleasedVersion=22.0.1
 android.enableUnitTestBinaryResources=true