Changeset [3775c3fb2e4148824692029cd5e46d6e8fb2eddf] by Alexander Ljungberg

Fixed: CPAlert was a CPView.

Before this fix, CPAlert subclassed CPView, causing an API mismatch with Cocoa and exposing unexpected methods in the public API which made no sense for a CPAlert such as autoresizing masks. It also lead to CPAlert mistakingly shadowing _window from its CPView superclass.

This fix makes CPAlert inherit from CPObject as it should. The theming, which needs to be applied to a view, was moved to an internal view.
https://github.com/cappuccino/cappuccino/commit/3775c3fb2e414882469...