Update to new emblem sizes

[Luca Ferretti <elle uca libero it>]

http://bugzilla.gnome.org/show_bug.cgi?id=321819

Another emerging bug due to recent changes in gnome-icon-theme. Now that
more and more "fixed" icons are landing in gnome-icon-theme, GNOME
Desktop will show emblems at wrong sizes.

Shortly, for example currently Nautilus expects to find the document
emblem for 100% zoom (folders icons at 48pixels) at size under
48x48/emblems/. This is wrong, 'cause emblems under 48x48/emblems/
should are 48x48 pixels too.

Now emblems in gnome-icon-theme are provided at the right size in the
right directory, so nautilus is staring to grab them at wrong size.

There was also a thread on this list on August 2006 (search bug
number). 

GNOME icon theme artist will be really happy if this issue could be
fixed in time form 2.20 release.