Tighten up the timing in db.empty

stub and slave zones need to be overwritten with data from their master server
in a reasonable timeframe. Drop all of the intervals in the db.empty SOA down
to sub-minute values to speed convergence.

files/db.empty

@@ -1,9 +1,9 @@
 $TTL	86400
 @	IN	SOA	localhost. root.localhost. (
 			      1		; Serial
-			 604800		; Refresh
-			  86400		; Retry
-			2419200		; Expire
-			  86400 )	; Negative Cache TTL
+			     60		; Refresh
+			     30		; Retry
+			    300		; Expire
+			     10 )	; Negative Cache TTL
 ;
 @	IN	NS	localhost.

manifests/zone.pp

@@ -38,6 +38,7 @@ define bind::zone (
         } else {
             $_source = 'puppet:///modules/bind/db.empty'
         }
+
         file { "${cachedir}/${name}":
             ensure  => directory,
             owner   => $bind::params::bind_user,
@@ -46,7 +47,6 @@ define bind::zone (
             require => Package['bind'],
         }
 
-        unless $zone_type == 'stub' {
         file { "${cachedir}/${name}/${_domain}":
             ensure  => present,
             owner   => $bind::params::bind_user,
@@ -79,7 +79,6 @@ define bind::zone (
             }
         }
     }
-    }
 
     file { "${bind::confdir}/zones/${name}.conf":
         ensure  => present,