feature 2548 multisize - ability to choose displayed size on index page

-added some logs on i.php (configurable) to measure the perf

git-svn-id: http://piwigo.org/svn/trunk@12908 68402e56-0260-453c-a942-63ccdbb3a9ee

themes/default/theme.css

@@ -685,13 +685,10 @@ IMG.ui-datepicker-trigger {
 }
 
 /* Set some sizes according to your maximum thumbnail width and height */
-.thumbnails SPAN,
-.thumbnails .wrap2 A,
-.thumbnails LABEL,
 .thumbnailCategory DIV.illustration {
   width: 140px;      /* max thumbnail width + 2px */
 }
-.thumbnails .wrap2,
+
 .content .thumbnailCategory .description {
   height: 140px;    /* max thumbnail height + 2px */
 }