SVN commit 1202456 by pinheiro:

new mimes 48x48, 72 to go 

 AM            48x48/mimetypes/application-x-applix-word.png  
 M             48x48/mimetypes/text-rtf.png  
 AM            scalable/mimetypes/small/48x48/application-x-applix-word.svgz  
 AM            scalable/mimetypes/small/48x48/text-rtf.svgz