Add failing test for lists/:id/clips
Implement Kippt::List.clips method for fetching clips on a list
Add documentation for the new Kippt::List.clips
Change ruby 1.9 hash syntax to 1.8 (hopefully fix travis ci build)
Merge pull request #1 from Darep/list-clips

Implement list.clips
Bumps version to 2.0.1
Updates the CHANGELOG