Fixed missing Symfony toolbar and some CS
Merge pull request #18 from mremi/fix-sf-toolbar-inclusion

Fixed missing Symfony toolbar and some CS
Moved the license to follow best practices
Merge pull request #19 from mremi/fix-license-path

Moved the license to follow best practices
Added screenshot to preview a fresh install
Merge pull request #20 from mremi/add-screenshot

Added screenshot to preview a fresh install