[Clipart] thumbnails size

[Nicu Buculei]

we generate thumbnails for releases with Inkscape, with "-w 80" 
parameter, that means the resulting PNG will have the width 80 pixels.

i just have submitted some images with the aspect ratio about 1:2.6 
(width:height). the resulted thumbnails (if we use the same procedure) 
will have the standard width (80 px) but a much larger height (206 px).
another example is 
http://openclipart.org/clipart//Animals/Mammals/contour_giraffe.png 
which cause a distortion in the layout of his page: 
http://www.openclipart.org/cgi-bin/navigate/Animals/Mammals
the same for http://www.openclipart.org/cgi-bin/navigate/Shapes/Decorations

we cannot use "-w 80 -h 80" because this will alter proportions in 
thumbnails

using "-h 80" instead of "-w 80" is also wrong, because will generate 
bad thumbnails when width is much larger compared with height

-- 
nicu