FYI: Does not build anymore

[martnst]

Hey I just wanted you checkout what awesome swift projects other than building apps are out there. Unfortunately the Sample app does not build anymore(?) for me.

➜  Swifton-TodoApp git:(master) ✗ swift build
warning: refname '0.1.0' is ambiguous.
warning: refname '0.1.0' is ambiguous.
HEAD is now at 12b940d Merge pull request #39 from weby/swift-04-25
Resolved version: 0.1.0
warning: refname '0.5.6' is ambiguous.
warning: refname '0.5.6' is ambiguous.
HEAD is now at ee7c76f Merge pull request #3 from weby/master
Resolved version: 0.5.6
warning: refname '0.6.4' is ambiguous.
warning: refname '0.6.4' is ambiguous.
HEAD is now at c99537a Merge pull request #2 from weby/master
Resolved version: 0.6.4
Empty manifest file is not supported anymore. Use `swift package init` to autogenerate.
error: The package at `/Users/marste/Projects/testing/Swifton-TodoApp/Packages/PathKit.git' has no Package.swift for the specific version: 0.6.4