Added dependency on authconfig package to kerberos, ldap and pam modules

Fixes #2.

kerberos/manifests/init.pp

@@ -74,6 +74,8 @@ class kerberos::client {
 #
 class kerberos::auth {
 
+    include pam::common
+
     include kerberos::client
     $kdclist = inline_template('<%= kerberos_kdc.join(" ") -%>')
 
@@ -86,7 +88,7 @@ class kerberos::auth {
                 path    => "/bin:/usr/bin:/sbin:/usr/sbin",
                 unless  => "egrep '^USEKERBEROS=yes\$' /etc/sysconfig/authconfig",
                 before  => Class["kerberos::client"],
-                require => Package["pam_krb5"],
+                require => Package["authconfig", "pam_krb5"],
             }
         }
         default: {