Bug 7334: Improve 'no address stored' and similar messages in patron account

Bug 7334: Improve 'no address stored' and similar messages in patron account

- 'no address stored' is now only displayed when first and second line
  of the address are empty
- added id's to all 3 possible messages so people can change or hide
  them

To test:

1) Check 'no address stored' shows only up when address fields are both
   empty
2) Check address is still correctly displayed

Note: make sure you check the 'checkouts' and other tabs, because there
are 2 different include files used here.

Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
I confirm the bug and the solution. Text messages identification for
customization with JavaScript is a plus.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>