Change module version from 2.0.0.1 to 2.2
Change module version from 2.0.0.1 to 2.2

Change the module version for release. The module version strategy
has been changed to conform with the new Omise plugin version strategy.

The previous version is 2.0.0.1 that implied to be version 2.1.

So, the new version will be 2.2.

omise/omise-opencart,omise/omise-opencart