* src/widgets/modest-header-view-render.c:

* src/widgets/modest-header-view-render.c:
        * When we want to fill the attach and priority icons with an empty value
          (and show them in blank) we don't need to retrieve a non existing icon,
          setting a NULL to the pixbuf cell renderer works. This fix removes
          a warning on runtime.
* src/maemo/modest-icon-names.h:
        * Updated the trash and junk icon names. This removes also warnings trying
          to get non existing icons in theme.

pmo-trunk-r2013