Bug fixes for !question

@@ -586,14 +586,17 @@ Stuff:
                 for pod in res.pods:
                     if pod.text:
                         pod_text += pod.text
-                client.send_message(message.channel, '{} {}.'.format(message.author.mention(), pod_text[:1000]))
+                client.send_message(message.channel, '{} {}.'.format(message.author.mention(), byteify(pod_text[:1500])))
             else:
                 tagged_sent = pos_tag(question.replace('?', '').split())
                 proper_nouns = [word for word, pos in tagged_sent if pos == 'NNP']
                 wiki_search = " ".join(proper_nouns)
-                print "Looking up {}".format(wiki_search)
-                wiki_out = wikipedia.summary(wiki_search, sentences=3)
-                client.send_message(message.channel, '{} {}.'.format(message.author.mention(), byteify(wiki_out)))
+                if wiki_search.strip() != "":
+                    print "Looking up {}".format(wiki_search)
+                    wiki_out = wikipedia.summary(wiki_search, sentences=3)
+                    client.send_message(message.channel, '{} {}.'.format(message.author.mention(), byteify(wiki_out)))
+                else:
+                    client.send_message(message.channel, 'I don\'t know {}.'.format(message.author.mention()))
             return
         except Exception as e:
             print(format_exception(e))