* src/modest-tny-msg.[ch]:

* src/modest-tny-msg.[ch]:
        * Now add_attachments method counts the number of attachments
          really attached (attachments we fail to retrieve are not
          counted), so that we can decide if we set the attachments flag
          This changes a bit the methods to create messages.
* src/modest-mail-operation.c:
        * Only set attachment flags if any attachment has been added
          succesfully (fixes NB#85360).
* src/modest-ui-actions.c:
        * Adapt to changes in tny msg builders.

pmo-trunk-r4588