Safari 12 must build from source

[vikingjs]

This issue is more for the benefit of people like me who want to keep using xdebug-toggler, at least until a supported alternative arrives.

While the extension has been rejected by Safari 12, it is still simple to install using Safari's Extension builder.

1. clone this repo
2. in Safari's develop menu, select Extension Builder
3. Click the + button and navigate to the repo. Select the .safariextension folder.
4. Click "run".

Note that you will have to come back and click run each time you restart Safari.

[avxkim]

I think much easier is to do it manually in a console:

document.cookie = "XDEBUG_SESSION = sublime.xdebug"