Fixed test

* Test was missing a fixture
* Change fistures files name to have a better relation with the
test file.
Change parameter for the update PR octokit method

* Call to update_pull_request was using a deprecated
version of the octokit update pull request method.
change event to have all the event type used by the hooks
Fix test for web hook
Remove commented line
Merge pull request #25 from amaabca/pr-list

Pr list