Profile pictures

A user should be able to set a profile picture (300x300 px). The profile picture should be editable on the profile page and uploaded to MEDIA/avatars/username.(png|jpg). On the app detail page it should display the picture under the owner and comaintainer list.

There must be no server side code that works on images since all existing libraries are written in C and have proven to be extremely insecure.

Due to privacy reasons we should host the pictures on our own server and not rely on something like gravatar.