zombie.js-todo(1) -- Wishlist
Navigation: Browser.open/close should work as a pair; look into supporting window.open; fire unload event when navigating away from page.
Send unload event when navigating away from page.
Time and timezone: within window context, new Date() should use browser clock and timezone; allow changing browser timezone and default to system's.
User agent: allow setting of user agent; brower sends user agent in all requests (pages, forms and XHR).
Prompts: handle window.confirm and window.alert.