Remove Guardfile.

Signed-off-by: crynobone <crynobone@gmail.com>
Reorder uses.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2
Reorder uses.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.2'
Update contract.

Signed-off-by: crynobone <crynobone@gmail.com>