Updated .hgignore to ignore the snapshot directory created during releases.
diff --git a/.hgignore b/.hgignore
index 38ec00f..b83fd96 100644
--- a/.hgignore
+++ b/.hgignore
@@ -17,4 +17,5 @@
 googlecode_upload.py
 google_api_python_client.egg-info/*
 dist/*
+snapshot/*
 MANIFEST