Execute(Checks for versions below the current version should succeed):
  AssertEqual 1, ale#Has('ale-4.0.0')
  AssertEqual 1, ale#Has('ALE-2.2.1')
  AssertEqual 1, ale#Has('ALE-1.0.0')

Execute(Checks for newer versions should fail):
  AssertEqual 0, ale#Has('ALE-20.0.0')
