Fixed caching.

For scary reasons, re-used cache was deleted everytime. This is now fixed. Loading in now *really* fast.

morss.py

@@ -277,6 +277,7 @@ def Fill(rss, rule, cache):
 	if cached is not None:
 		log('cached')
 		item.content = cached
+		cache.save(item.link, cached)
 		return item
 
 	# download