[Findit] A huge refactoring and some bug fixing.

appengine/findit/common/constants.py

Index: appengine/findit/common/constants.py
diff --git a/appengine/findit/common/constants.py b/appengine/findit/common/constants.py
new file mode 100644
index 0000000000000000000000000000000000000000..cf79b36c46d0b5efcb4eaafb9d5ebd591479db3b
--- /dev/null
+++ b/appengine/findit/common/constants.py
@@ -0,0 +1,20 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Includes all the constants of module names, queue names, url paths, etc."""
+
+# Names of all modules.
+WATERFALL_BACKEND = 'waterfall-backend'
+
+
+# Names of all queues.
+DEFAULT_QUEUE = 'default'
+WATERFALL_ANALYSIS_QUEUE = 'waterfall-analysis-queue'
+WATERFALL_TRY_JOB_QUEUE = 'waterfall-try-job-queue'
+WATERFALL_SERIAL_QUEUE = 'waterfall-serial-queue'
+
+
+# Url paths.
+WATERFALL_TRIGGER_ANALYSIS_URL = '/waterfall/trigger-analyses'
+WATERFALL_ALERTS_URL = 'https://sheriff-o-matic.appspot.com/alerts'