proxy/ceilometer: deploy middleware before starting service

If we don't deploy the middleware before starting swift-proxy,
swift-proxy might fail to start because it won't find the dependency.

This patch aims to make sure we first install
python-ceilometermiddleware before trying to start swift-proxy.

Change-Id: I3a04bba9de1ebc5e0fad40a43aa7b278f3597b17

manifests/proxy/ceilometer.pp

@@ -88,8 +88,9 @@
     groups +> $group,
   }
 
-  if defined(Service['swift-proxy']) {
-    File['/var/log/ceilometer/swift-proxy-server.log'] -> Service['swift-proxy']
+  if defined(Service['swift-proxy-server']) {
+    File['/var/log/ceilometer/swift-proxy-server.log'] -> Service['swift-proxy-server']
+    Package['python-ceilometermiddleware'] -> Service['swift-proxy-server']
   }
 
   file { '/var/log/ceilometer/swift-proxy-server.log':