$cost must be in range 4-31.

Fixed URL parsing so it's now properly giving 404 for URLs like `http://example.com//////site/about`

and 7ba6a063

when $_SERVER['HTTPS'] is "ON" it doesn't work well

to allow specific styling
also fixed an issue with gridview sort indicator css.

fixes #1000

this will result in objects that do not have the property anymore :-)

fixes #1773

e.g. UserEvent::trigger('event', 'class');
should result in a UserEvent to be passed to the handlers instead of
a base\Event.

And some docs punctuation.

closes #1762