Problem

CKAN has pretty excellent handling for two-part game versions (e.g., "1.3" or "1.4") thanks to #1645, but to use it with a .version file you need to use a "-1" wildcard, as in:

	"KSP_VERSION_MIN": {
		"MAJOR": 1,
		"MINOR": 3,
		"PATCH": -1
	},

Which is kind of awkward and not terribly well known. Simply leaving out PATCH will raise an error:

1382 [1] FATAL CKAN.NetKAN.Program (null) - One of the identified items was in an invalid format.

I tested that format with KSP-AVC itself, and it worked fine, so Netkan should handle it as well.

Changes

Now you can leave out PATCH, MINOR, or even MAJOR, and the wildcard will be assumed.

Fixes #1687.