Update docs and version.
diff --git a/googleapiclient/__init__.py b/googleapiclient/__init__.py
index 898278d..1e1a6cf 100644
--- a/googleapiclient/__init__.py
+++ b/googleapiclient/__init__.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.3"
+__version__ = "1.3.1"