Lock down bugs.php.net to only developer accounts about web-bugs

[Girgias]

I know we had a couple of discussion with @cmb69 about this. The main blocker was security issues. But AFAIK those can now be handled on GitHub too.

[damianwadley]

True, but even if we're not ready for that leap just yet, doesn't restricting to php.net accounts still allow work with security reports? Speaking as someone who hasn't worked with those. If not then they could just, you know, be an exception to the rule.

[nikic]

717f16a should help with the spam.