Renamed the zulip folder to zulip-puppet

The entrypoint.sh is now a fully functional setup and run script for zulip installations in docker.

includes/zulip-puppet/manifests/postgres_common.pp

@@ -0,0 +1,17 @@
+class zulip::postgres_common {
+  $postgres_packages = [# The database itself
+                        "postgresql-9.3",
+                        # Python modules used in our monitoring/worker threads
+                        "python-gevent",
+                        "python-tz",
+                        "python-dateutil",
+                        # our dictionary
+                        "hunspell-en-us",
+                        ]
+  define safepackage ( $ensure = present ) {
+    if !defined(Package[$title]) {
+      package { $title: ensure => $ensure }
+    }
+  }
+  safepackage { $postgres_packages: ensure => "installed" }
+}