send email subject utf-8 encoded

william

2015-09-30 2dfdd53642e60289ee7f3b420844a8df53ec406b

 src/main/java/com/gitblit/manager/IUserManager.java

@@ -24,6 +24,7 @@
    *
    * @param username
    * @return true if the specified username represents an internal account
     * @since 1.4.0
    */
   boolean isInternalAccount(String username);