Move python-pip include to a class.

You can't have two different classes install the same package (FAIL)
But you can have two different classes include the same class, so
by encapsulating the "install pip" code into a module, we can safely
consume it across multiple modules.

Sometimes I really hate puppet.

Change-Id: I3467c52b6887298c1b4d01a29873c63edf0adfd3

manifests/init.pp

@@ -1,7 +1,6 @@
 class lodgeit {
   $packages = [ "nginx",
                 "python-imaging",
-                "python-pip",
                 "python-jinja2",
                 "python-pybabel",
                 "python-werkzeug",
@@ -11,12 +10,14 @@ class lodgeit {
                 "drizzle",
                 "python-mysqldb" ]
 
+  include pip
+
   package { $packages: ensure => present }
 
   package { 'SQLAlchemy':
     provider => pip,
     ensure => present,
-    require => Package[python-pip]
+    require => Class[pip]
   }
 
   file { '/srv/lodgeit':