Remove Dependency#to_hash (we are not using it anymore)
Add specs for PathLocations
Remove duplicate PathLocation#valid? method
Remove PathLocation#to_hash
Make PathLocation#relative_path be the path relative to the Berksfile
Add PathLocation#expanded_path for the fully-expanded path
Use the expanded path for the cookbook
Merge pull request #1088 from berkshelf/sethvargo/path_equals

Fix equality checking for PathLocations