Remove /users or /usersc path

[plb]

-off-topic-

This use-case would provide an argument for making all redirect::to() calls relative with just the script name. Then the Redirect::to() has the (configurable) list of directories that it searches, one-by-one, until it finds an existing one. Thus if you want to change the location of a script, you just move/copy it into the desired location or else create a stub (with only the require_once("original/path/to/script.php") call) in the desired location. The former (moving the script) is slightly easier but the latter (stubs) solves the problem of future upgrades. Both are contingent on removing

Code:

"users/"

and

Code:

$us_url_root.

from all calls to Redirect::to(). Surprisingly, it looks like this would only be about 9 occurrences in UserSpice4.