php 5.6 is not yet released, so use 5.6.0-dev here
php 5.6 is not yet released, so use 5.6.0-dev here

Darhazer/phpunit-mock-objects,PeeHaa/phpunit-mock-objects,JeroenDeDauw/phpunit-mock-objects,stefk/phpunit-mock-objects,awhale/phpunit-mock-objects