Run on phototresor database if in local environment
If homestead is the hostname then local is the env
Use apiError to respond to Unauthorized request
Merge branch 'master' of github.com:PhotoTresor/server

* 'master' of github.com:PhotoTresor/server:
  Add seeResponseContainsJson test to CreateNewInvalidUser acceptance test
  Improve the ValidationExceptioin
  Improve readability of README.md
  Added Gitter badge
  Create acceptance test 'CreateNewInvalidUser'
  Create app/errors.php with ValidationException handler
  Rename validation classes