Catch more http exceptions

Such as InvalidURL. Subclasses of httplib.HTTPException

morss.py

@@ -341,7 +341,7 @@ def Fill(item, cache, feedurl='/', fast=False):
 		url = item.link.encode('utf-8')
 		con = urllib2.build_opener(HTMLDownloader()).open(url, timeout=TIMEOUT)
 		data = con.read()
-	except (urllib2.HTTPError, urllib2.URLError, socket.timeout) as error:
+	except (urllib2.HTTPError, urllib2.URLError, httplib.HTTPException, socket.timeout) as error:
 		log('http error')
 		cache.set(item.link, 'error-http')
 		return True
@@ -379,7 +379,7 @@ def Gather(url, cachePath, progress=False):
 			cache.set(url, xml)
 			cache.set('etag', con.headers.getheader('etag'))
 			cache.set('lastmodified', con.headers.getheader('last-modified'))
-		except (urllib2.HTTPError, urllib2.URLError):
+		except (urllib2.HTTPError, urllib2.URLError, httplib.HTTPException):
 			return False
 
 	rss = feeds.parse(xml)