caskroom/homebrew-cask — pull request #4658 by rolandwalker (2014-06-03 14:42:06+00:00)
Title: Demote implicit Cask path sources (i.e. files in current working directory)

Don't prefer Cask files in the cwd (fixes #4641.) Cask files in the cwd are
still permitted, but at the very lowest priority, below Tapped Cask names.

Also add `to_s` methods to all sources and show resolved Cask source when
using `--debug`.