* src/modest-text-utils.[ch]:

* src/modest-text-utils.[ch]:
        * Now validate_email_address and validate_recipient also
          return the position of the invalid char in case validation
          failed because of this.
        * Added & as invalid character.
* src/maemo/modest-address-book.c:
        * Now we show a proper information banner when we enter invalid
          characters (fixes NB#59494).

pmo-trunk-r2557