Remove integer cast on date. This fix an integer overflow on 32 bits systems

db/smsmapper.php

@@ -260,7 +260,7 @@ class SmsMapper extends Mapper {
 			'(?,?,?,?,?,?,?,?,?,?)');
 			$result = $query->execute(array(
 				$userId, "NOW()", "NOW()", $smsFlags,
-				(int) $sms["date"], (int) $sms["_id"],
+				$sms["date"], (int) $sms["_id"],
 				$sms["address"], $sms["body"], (int) $sms["mbox"],
 				(int) $sms["type"]
 			));