CRM-13165 - CRM/Form/validate.tpl - Make it easier to include in CiviHR

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* CRM-13165: hrjob: Re-save produces blocking error, "X is not a valid amount"
  http://issues.civicrm.org/jira/browse/CRM-13165

templates/CRM/Form/validate.tpl

@@ -27,6 +27,9 @@
 {* Initialize jQuery validate *}
 {* Extra params and functions may be added to the CRM.validate object before this template is loaded *}
 
+{if !$crm_form_validate_included}
+{assign var=crm_form_validate_included value=1}
+
 {literal}
 <script type="text/javascript" >
 cj(function($) {
@@ -82,3 +85,4 @@ cj(function($) {
   {/if}
 });
 </script>
+{/if}