Add Carthage/Commandant to workspace
Replace Command.swift with Commandant
Completely remove now-empty CarthageTests
Remove annoying search path added by Xcode
Merge pull request #129 from Carthage/extract-commandant

Extract Command and ArgumentParser into Commandant.framework
Move Components.plist

I added it to the project for easier plist-editing.
Merge branch 'master' into pkgbuild