Release v1.0.0

Merge pull request #14 from jolicode/feature/13-use-exception-event

Replace image using Kernel event listener :shower:

Release 0.2

• Add compatibility with Symfony versions from 2.3 to 3.0
• Add more GIFs
• Fix tests
• Reword README

Initial release

0.1.0

Update documentation and improve gifs :pencil: