support creating server clauses

templates/named.conf.erb

@@ -2,6 +2,7 @@
 include "<%= @confdir %>/acls.conf";
 include "<%= @confdir %>/keys.conf";
 include "<%= @confdir %>/views.conf";
+include "<%= @confdir %>/servers.conf";
 <%- if @statistics_port -%>
 
 statistics-channels {

templates/server.erb

@@ -0,0 +1,10 @@
+server <%= @name %> {
+  bogus <%= @bogus ? 'yes' : 'no' %>;
+  edns <%= @edns ? 'yes' : 'no' %>;
+<%- if @key -%>
+  keys <%= @key %>;
+<% end -%>
+<%- if @transfers -%>
+	transfers <%= @transfers %>;
+<%- end -%>
+};