fix config problem, filter on short answers

plugins/quiz.py

@@ -21,12 +21,13 @@ def get_questions(directory=None):
     return all_questions
 
 
-def get_random_question(quizcfg):
+def get_random_question():
+    with plugin_config('quiz') as quizcfg:
         questions = get_questions()
         # select a random question
         used_ids = quizcfg.get('used_ids', [])
         q_index = None
-    while q_index is None:
+        while q_index is None or len(questions[q_index+1].split()) > 2:
             rand = random.choice(range(0, len(questions)-2, 2))
             if rand not in used_ids:
                 q_index = rand
@@ -134,7 +135,7 @@ def start_random_question():
 
         else:
             quizcfg["locked"] = True
-        qa = get_random_question(quizcfg)
+        qa = get_random_question()
 
         return {
             'msg': ['Q: {}'.format(qa[0])],