Update to v1.0.1 for some minor fixes
Mock out the `stdlib` class in all cases for RSpec

This fixes a test regression introduced in #109. I believe there is an
underlying issue here where rspec-puppet is not properly loading or respecting
the spec/fixtures/modules directly.

Committing from 37,000ft, no bandwidth to investigate further :(
Refactor some RSpec Facter test helpers into spec_helper.rb

This fixes a minor test regression introduced in #111, wherein Facts defined in
some rspec-puppet were not getting flushed before running the RSpec unit tests