support windows8 config-file which uses an xml file with a .appxmanifest extension
[CB-4036] - first pass for adding version script
[CB-4036] - added test file for checking engine and versions
[CB-4036] - refactored the engine/version checks for easier testing
[CB-4036] - fixed up some failing tests
[CB-4036] - synching up with master and fixed failing tests
[CB-4036] - another pass at the engine/platform check problem
[CB-4036] - fixed up some small errors
[CB-4490 & CB-4036] - added check for cordova-plugman and made a util function
[CB-4036] - fixed up how plugin install handles the dev flag for repos as well as cleaned up some errors
[CB-4036] - added more tests and fixed up some logic
[CB-4036] - fixed up the default engines and added some tests
[CB-4036] Forgot updated default-engines file
[CB-4036] - fixed custom engine loading and added test
[CB-3646] - fixed custom engine src script not being properly set
[CB-4036] - fix for handling current state of platform branches with version listed as dev
[CB-4036] - added ability to list multiple platforms in plugin.xml
[CB-4036] - forgot to add test file