Protect install of every jeepyb package.

Because puppet sucks at installing packages, wrap the installation of
everything that jeepyb needs in both jeepyb and in other places with
if blocks. *facepalm*

Change-Id: I69c73dabc3ea5d68bd057141b1ad758cdd68eafc
Reviewed-on: https://review.openstack.org/17130
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins

manifests/init.pp

@@ -7,8 +7,7 @@ class lodgeit {
                 'python-werkzeug',
                 'python-simplejson',
                 'python-pygments',
-                'drizzle',
-                'python-mysqldb' ]
+                'drizzle']
 
   include apache
 
@@ -24,6 +23,12 @@ class lodgeit {
     ensure => present,
   }
 
+  if ! defined(Package['python-mysqldb']) {
+    package { 'python-mysqldb':
+      ensure   => present,
+    }
+  }
+
   package { 'SQLAlchemy':
     ensure   => present,
     provider => pip,