Merge branch 'feature/monitoring' into 'master'

server is still pip

See merge request !8
diff --git a/sensu/server.sls b/sensu/server.sls
index 6ea9e73..b849d53 100644
--- a/sensu/server.sls
+++ b/sensu/server.sls
@@ -10,8 +10,8 @@
   - require_in:
     - file: /etc/sensu
 
-sensu_server_pkg:
-  pkg.installed:
+sensu_server_pip:
+  pip.installed:
   - name: sensu
   - require:
     - pkg: sensu_server_packages