Chef Server 11 version is not properly parsed

When manually forcing the "api-version" in chef, if the version is greater than 0.10.x it is not properly parsed. The numbering convention for the version has changed, and Chef 11 has the "11" number in the "major" number instead of in the "minor" one.

The code that parses the version to inject the appropriate cookbook parser should be modified accordingly. However, this is just a minor, as the provider works well if sending a 0.10.8 version header o a Chef Server 11.