New Features

• 223: Add PHP version checker task
• 225: Add Kahlan task
• 227: phpversion
• 236: Added kahlan support
• 239: Add brunch support

Bugfixes

• 237: Custom banners
• 238: Bugfix: Custom ASCII cannot be loaded.
• 240: Got php fatal error on a symfony 2.8 project
• 241: Make sure that GrumPHP can be used in a full-blown symfony application.