Merge pull request #5 from nonrational/comment-clarification

manifest documentation fixes
Merge pull request #6 from nonrational/python-local-fix

use explicit arrow chain ordering over resource name 'before' ordering
Merge pull request #7 from nonrational/see-dashes-in-pip-freeze

expand matcher for package names to include dashes
Updating python versions.
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  Updating python versions.
fix pyenv to ensure global::system functions