Fixes issue where ancestors would be returned in natural order instead of their actual order. Fixes #39
Minor style improvements to the specs
Fixes another issue related to ancestors in ordered trees. Closes #39
Adds tmp/ to .gitignore
Removes specific error classes from .not_to raise_error expectations
Updates .travis.yml to include ruby 2.0.0
Changes source in Gemfile to URL
Changes several operator matchers
Updates dependency to RSpec 2.14
Changes specs to new expect syntax
Bumps version to 1.0.2
Updates years in Readme and License files
Adds MIT license to gem specification
Prevent #ancestors from returning all nodes when there are no parent_ids
Bumps version to v1.0.3
Don't fail during  when a parent is missing. Closes #41
Ancestors are now chainable with other OR criteria. Closes #45
Bumps version to v1.0.4
Commit before merging upstream
Merge upstream/master