catch more twitter exceptions

lib/twitter.py

@@ -124,6 +124,7 @@ def fetch_acc(account, cursor):
         print("no twitter access, aborting")
         return
 
+    try:
         user = t.account.verify_credentials()
         db.session.merge(account_from_api_user_object(user))
 
@@ -143,7 +144,6 @@ def fetch_acc(account, cursor):
             if most_recent_post:
                 kwargs['since_id'] = most_recent_post.twitter_id
 
-    try:
         tweets = t.statuses.user_timeline(**kwargs)
     except (TwitterError, URLError) as e:
         handle_error(e)