WIP Cartridge Refactor

* Add support for v1_cartridge_format/v2_cartridge_format markers in /var/lib/openshift/.settings


```
# cucumber cartridge-mock.feature
(fails)
# mkdir  /var/lib/openshift/.settings
# touch /var/lib/openshift/.settings/v2_cartridge_format
# cucumber cartridge-mock.feature
(works)
```