misc: move datepicker code to global welco.js

welco/static/js/welco.js

@@ -278,6 +278,7 @@ $(function() {
   });
 
   $('#postit').on('click', window.displayPopup);
+  $('#id_post_date').datepicker($.datepicker.regional["fr"]);
 
   if ($('#formdef-filter').length) {
      var known_formdefs = Object();

welco/templates/welco/qualification.html

@@ -38,8 +38,3 @@
 </form>
 {% endif %}
 </div>
-<script>
-$(function() {
-  $('#id_post_date').datepicker($.datepicker.regional["fr"]);
-});
-</script>