Added source field to generated json input

- the key 'source' has as the value the url to the source of the question
    - If not source is specified it is set to 'false'

tools/questions2json.py

@@ -40,11 +40,24 @@ class Question(yaml.YAMLObject):
     """
     yaml_tag = u"!Question"
     web_root = "data"
-    media_path = ""
 
     # {round_no1: [tier1, tier2, ...], round_no2: [tier1, ...]}
     registered_questions = {}
-    points = {
+    points_fixed = {
+       1: 100,
+       2: 150,
+       3: 225,
+       4: 337,
+       5: 506,
+       6: 759,
+       7: 1139,
+       8: 1709,
+       9: 2563,
+       10: 3844,
+       11: 5555,
+       12: 7531,
+    }
+    points_rnd_by_round = {
        1: 100,
        2: 150,
        3: 225,
@@ -59,8 +72,11 @@ class Question(yaml.YAMLObject):
        12: 7531,
     }
 
+    # kinda a symlink to the points generating dict
+    points = points_rnd_by_round
+
     def __init__(self, question=u"", tier=0, answers=[], game_round=0,
-                 media=("", "", ""), source="", media_path="", web_root="data"):
+                 media=("", "", ""), media_path="data", web_root="data"):
         """docstring for __init__
            @question - the Question 
            @rank - number of the question in the game
@@ -68,14 +84,12 @@ class Question(yaml.YAMLObject):
            @answers - list of answers, assumed are 4
            @media - (media show at question time, media shown at answer time,
                      media shown at resolution time)
-           @media_path - src path to the media files 
-           @web_root - path to media files on the web server
+           @media_path - path to the media files
         """
         self.question = question
         self.answers = answers
         self.tier = tier
         self.game_round = game_round
-        self.source = source
         self.media = media
         self.media_path = media_path
         self.web_root = web_root
@@ -108,11 +122,11 @@ class Question(yaml.YAMLObject):
 
         data = {}
         data['text'] = self.question
+        data['tier'] = self.points.get(int(self.tier), 0)
         try:
             data['source'] = self.source
         except AttributeError:
-            data['source'] = ""
-        data['tier'] = self.points.get(int(self.tier), 0)
+            data['source'] = False
         data['answers'] = [
             {'text': answer[False]} if answer.has_key(False) \
             else {'text': answer[True], 'right': True} \
@@ -122,14 +136,9 @@ class Question(yaml.YAMLObject):
             def gen_questions():
                 q_data = {}
                 for f in self.media['question']:
-                    try:
-                        q_data[self.__type_by_extension(
-                            os.path.sep.join(os.path.join([self.media_path, f])
-                            )
-                        )] = os.sep.join([self.web_root, f])
-                    except AttributeError, e:
-                        raise AttributeError, \
-                            "Question {0} cannot be generated: {1}".format(self.question, e)
+                    q_data[self.__type_by_extension(
+                        os.path.sep.join(os.path.join([self.media_path, f]))
+                    )] = os.sep.join([self.web_root, f])
                 return q_data
             def gen_explanation():
                 return {'explanation': [os.sep.join([self.web_root, expl]) \