Require permission or pref to debug in client

Require permission or pref to debug in client

Disables all debug functions I know of unless:

1 - You have new DEBUG_CLIENT permission (after login)

This should work even on operator change.
Once a given debug interface is open you can change operator back.

2 - You have a client with the debug preference enabled

This causes the client in all places I touched to think you have DEBUG_CLIENT
This also allows debugging *before* login, including in the Standalone interface.

Debug functions I know of:

Debug box on login page (already protected by pref)
Debug items in Admin menu
    Venkman
    Javascript Shells
    Inspector
    Chrome List
CTRL+SHIFT+F7 debug box in overlays

Signed-off-by: Thomas Berezansky <tsbere@mvlc.org>
Signed-off-by: Jason Etheridge <jason@esilibrary.com>