Update vendor & install FOSRestBundle, JMSSerializerBundle, NelmioApiDocBundle
Add FOSRestBundle config
Generate Post entity, interface and form. Rename the controller
Fix the interface inside entity and add a prefix to route name
Add Handler to manage Post entity
Add some dev dependencies
* phpunit
* doctrine fixtures bundle
* liip functional test bundle
Fix some namespaces and add an interface for the Post handler class
Add test for get and modify a few things to makes them works
* Add doctrine fixtures to kernel
* Fix some bad namespaces
* Add a fixture
* Add tests
Fix exceptions handler