Merge pull request #1 from 3Dpals/master

Get current state
Merge pull request #2 from 3Dpals/master
<AJAX>Fixed AJAX for Profile for changes in API
<AJAX>Gallery and Model page modified to changed API
<AJAX>File handling implemented for thumbnail.
Merge pull request #26 from johannes-baldinger/master

<Front-End> Debugging and adjusting. All working for the moment.