* src/modest-platform.h, src/maemo/modest-platform.c:

* src/modest-platform.h, src/maemo/modest-platform.c:
        * Added method (modest_platform_set_dialog_help) and
          implementation for maemo using hildon/osso help. This method
          sets a topic for contextual help of a dialog.
* src/maemo/modest-account-view-window.c:
        * Attach help topic for accounts settings dialog. This fixes
          NB#64313 at modest side. We still need the topic help in
          help contents.

pmo-trunk-r3463