git importer strips the url denying access to private github project

[Richard Harding]

In github there are private project. I can branch/pull those down if I place an oauth token into the url as part of basic http auth. However, the importer stipped the :@ from the url preventing this from working.

I was trying this with a private project here: https://code.launchpad.net/~rharding/thebluescharm-backend/master

It took the :@ and made the url non-resolvable. However, if I were to git clone that url from the cli it works.

This is needed as we have charm development for charms we want to deploy on prodstack in github and we're unable to import them into LP so that IS will trust/load the charms.