CC-1960Internationalize Airtime / Support translations

-added gettext wrapper to strings missing it
-timepicker close button was not getting translated -fixed

airtime_mvc/application/models/ShowBuilder.php

@@ -195,7 +195,7 @@ class Application_Model_ShowBuilder
             $dt->setTimezone(new DateTimeZone($this->timezone));
             $time = $dt->format("Y-m-d H:i");
 
-            $row["rebroadcast_title"] = "Rebroadcast of {$name} from {$time}";
+            $row["rebroadcast_title"] = sprintf(_("Rebroadcast of %s from %s"), $name, $time);
         } elseif (intval($p_item["si_record"]) === 1) {
             $row["record"] = true;