Changed project_url to projects_url
Changed project_url to projects_url

The project available inside of the Project controller does not contain
an id, so need to assemble the project_url from the response object. So
projects_url (generic projects resource url) is passed instead which is
crafted from the request object in the Project controller.

projectjellyfish/jellyfish-notification,projectjellyfish/jellyfish-notification,projectjellyfish/jellyfish-notification