Incorrect URL routes for project create/update/archive views

[mikkonie]

I noticed we have the following routes in projectroles.urls:

route='project/update/<uuid:project>'
route='project/create'
route='project/create/<uuid:project>'
route='project/archive/<uuid:project>'

This is wrong, as the project/ prefix is already provided by including the projectroles app URLs into the site URL config. This creates URLs with project/project/x. It seems we have had this bug in since v0.13.0 but I've missed it.

The project/ prefix should be dropped from these routes.

Since we use URL names in our code everywhere, this should not break anything (except for possible user bookmarks for the erroneous URLs).

[mikkonie]

Done by @gromdimon, merged.