Make the following changes to deal with new behavior in Rails 4.1.2:

* Use nested resources to avoid slashes in arguments to path helpers.

Signed-off-by: Jeroen van Baarsen <jeroenvanbaarsen@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

This reverts commit 5aaa3565, reversing
changes made to 5b8c1767.

* project_with_code -> project
* project -> ermpty_project
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Eliminate a 404 error when user is not logged in and attempts to visit
a project page.

The 404 page will still show up when user is logged in and the project
doesn’t exist or the user doesn’t have access.