JC-2004 There seem to be a lot of bots crawling javatalks. They use wrong URLs and thus a lot of exceptions are being seen in console.

Method showTopicPage in TopicController now throws also TypeMismatchException cause URL can contains bad type of topicId (e.g. http://javatalks.ru/topics/id="10322") and a lot of exceptions are being seen in console;
The exception is handled in PrettyLogExceptionResolver
Merge remote-tracking branch 'origin/master'