Set new Melange version number to 2-1-20141209 in app.yaml.template

Change-Id: I1d25fbc92c59ac013ac9a234f0045f691fa3014b
diff --git a/app/app.yaml.template b/app/app.yaml.template
index 76207a4..34e7d94 100644
--- a/app/app.yaml.template
+++ b/app/app.yaml.template
@@ -15,7 +15,7 @@
 # TODO(proto): uncomment and supply a Google App Engine application instance
 # application: FIXME
 # TODO(release): see the instructions in README about the "version:" field
-version: 2-1-20141201
+version: 2-1-20141209
 runtime: python27
 api_version: 1
 threadsafe: false