Vier, caches and "share" via API

In "vier" you should now edit your profile at any time (when you hadn't chosen to use different profiles then one link was missing). For information purposes the language of a post is now shown in the bottom of the post. Sometimes the detection isn't very reliable :)

In IE10 there are no borders around the images anymore. IE9 (and lower) is unusable as before :)

The "photo" cache is now cleared only once an hour.

Finally: In the API the "share" element is supported now as well.