Add unit test to validate headers

Bump fractal version to close ellipsesynergie#20

Remove usage of facade for Lumen

Release 0.10

Release 0.9

Fix laravel 4 issue for version 0.8 to close ellipsesynergie#8

Bump the fractal version

Add the support to set custom resource key for issue ellipsesynergie#4

Fix laravel response bug related to 0.6.0

Rename attribute and add a getter method to fetch the manager