- Add support for laravel 4.2 (~4.1 => >=4.1, <5.0-dev).
- Updated require-dev dependencies to depend on their current major version
- Bumped phpunit/phpunit to 4.0
Merge pull request #21 from tomzx/features/support-laravel-4.2

Update composer.json for laravel 4.2 and update require-dev dependencies