auth
auth/.hgignore
Require full URLs for Endpoints. The spec says that we SHOULD require full URLs for redirection, but we _can_ offer the ability to set a URL as a "partial URL" if we really must. I see no particular reason to do this, so I've simplified the code by pulling that option out. This means that URLs (as long as they're normalized, which I've filed a bug in the codebase to do) can be checked using simple string comparison, which makes the likelihood of bugs across clientStorage implementations a lot lower.