Use an OrderedDict for pipelines

So that status displays will show pipelines in the order defined
in the config file.

Change-Id: I2913c94dd44f4443f5bdca54241fd1af027258a8
diff --git a/requirements.txt b/requirements.txt
index fad8546..ddee844 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,6 +9,7 @@
 paramiko
 GitPython>=0.3.2.RC1
 lockfile
+ordereddict
 python-daemon
 extras
 statsd>=1.0.0,<3.0