- multisize thumb longest side can be smaller than the square size

- remove unused css, shorten/optimize php called very often (at least theoretically should be faster)

git-svn-id: http://piwigo.org/svn/trunk@13240 68402e56-0260-453c-a942-63ccdbb3a9ee

themes/default/theme.css

@@ -294,8 +294,7 @@ TD.calDayHead {
 	-moz-border-radius: 4px;	/* round corners with Geko */
 	-webkit-border-radius: 4px; /* Safari webkit project */
 }
-.thumbnails .wrap2 A,
-.thumbnails LABEL {
+.thumbnails .wrap2 A {
 	display: block;
 	border-bottom: 0;
 }