Working Header-Photo Implementation

- Tweaked Tests
- Tweaked Ansible scripts
- Header and footer images
Adding Photo Credits

- added credits to photos
- tweaked design
- fixed less config
Fixing assetic/supervisor provisionig
Updating README
Updating Ansible setup

- doctrine migrations
- mysql setup
- fixed composer install
- proper setup for ready loading site.
Merge pull request #17 from AmsterdamPHP/2-photo-bar

[WiP] Photo Bars