Forum: buffer texts

If users are idle for too long, they will be kicked out of the system. This is especially annoying if they were in the process of writing long texts in the forum, because they might lose all their well thought out thoughts.

Now text in the forum forms will be continuously buffered to the local storage of your browser.
This should survive page reloads as well as a logout, meaning if you are kicked out just log in, hit Reply again and your texts hopefully will still be there.