Update Ecomdev_PHPUnit

Change IvanChepurnyi/EcomDev_PHPUnit to EcomDev/EcomDev_PHPUnit.git because the repository is migrated to EcomDev, https://twitter.com/IvanChepurnyi/status/319349955473059842
Merge pull request #25 from moleman/patch-1

Migrate Ecomdev_PHPUnit to EcomDev repository