Problems with browser caching #212

See again and again, that when updating to a new version, that people doesn't see webpages properly, due to browser caching.

Since this is such a small website, I guess the impact of disabling caching will not have a huge impact, so we are going to try that.

Note to self: http://stackoverflow.com/questions/12031007/disable-static-file-caching-in-tornado