Merge pull request #37 from CL0SeY/master

Retrieve and respond on index using etags and handling 304's
Fix a broken reference
Merge pull request #40 from kwizzn/master

Fix a broken reference
Merge pull request #38 from CL0SeY/master

Keep the existing tests working after #37
Add todo.md
Convert from exports to describe for mocha tests
Change test fixtures to use file-fixture