Updated 'attempts.json.rabl' to output a json object with an array of attempts.
Updated tests for 'attempts'.
Updated 'attempt_spec.rb'.
Merge pull request #15 from lion-of-conquest/challenge

tweaked tasks and challenges tests, changed tasks and challenges views t...
Merge pull request #16 from lion-of-conquest/attempt

Attempt
Merge branch 'challenge' of github.com:lion-of-conquest/challengr_api into challenge
tasks#index now working!