Fix bug incorrectly displaying wide images in FF

This bug occured because of the interaction between flex-box on the
surrounding container and min-width/max-width. Setting the flex-basis
property on the image leads to the image correctly picking up
width/height again.

See also:
philipwalton/flexbugs#138

web/static/scripts/search.js

@@ -24,10 +24,10 @@ $('#image').on('load', function() {
 		});
 	}, 0);
 	if(img.naturalWidth < img.naturalHeight) {
-		$(this).css({'min-width': '', 'max-width': '', 
+		$(this).css({'min-width': '', 'max-width': '', 'flex-basis': '', 
 					 'min-height': '100%', 'max-height': '100%'});
 	} else {
-		$(this).css({'min-height': '', 'max-height': '',
+		$(this).css({'min-height': '', 'max-height': '', 'flex-basis': '100%', 
 					 'min-width': '100%', 'max-width': '100%'});
 	}
 	$('#text_image_size').text("WxH: " +