Hyperlinks and other updates at the start of the week

Considering that this was a minor fix we improved a lot in the back. From today onwards our backend is working with Angular JS 1.2 and therefore with major improvements. Because of this our uploader is more stable and more secure. This change was challenging, because the update of Angular JS came with different changes in code. For the upcoming updates this was a very important step, the we now can use the bootstrap more effectively.