remove types from ip pools

closes #24

app/views/ip_pool_rules/index.html.haml

@@ -59,7 +59,7 @@
 
             %dl.ipPoolRuleList__condition
               %dt Will be sent using:
-              %dd= ip_pool_rule.ip_pool.description
+              %dd= ip_pool_rule.ip_pool.name
     - if @server
-      %p.ipPoolRuleListDefault.u-margin All mail that doesn't match a rule above will be sent using #{@server.ip_pool.description}.
+      %p.ipPoolRuleListDefault.u-margin All mail that doesn't match a rule above will be sent using #{@server.ip_pool.name}.
     %p.u-center= link_to "Add another rule", [:new, organization, @server, :ip_pool_rule], :class => "button button--positive"