Release google-api-python-client 1.7.4 (#540)

Release v1.7.4
diff --git a/CHANGELOG b/CHANGELOG
index eb4afea..30e8c7e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,10 @@
+v1.7.4
+  Version 1.7.4
+ 
+  Bugfix release
+
+  - Catch ServerNotFoundError to retry the request (#532)
+
 v1.7.3
   Version 1.7.3
 
diff --git a/googleapiclient/__init__.py b/googleapiclient/__init__.py
index 5b4ca88..5f80b9a 100644
--- a/googleapiclient/__init__.py
+++ b/googleapiclient/__init__.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.7.3"
+__version__ = "1.7.4"
 
 # Set default logging handler to avoid "No handler found" warnings.
 import logging