New, darker icons

Thought I had done this earlier...
Element.attr function added

Get, set, and unset attributes.

zQ.listen() -> zQ.on()

Removed duplicate camelCase function
Correctly and consistently use quotes.

Some fonts weren't working because url was not quoted. Also, always use
single instead of double quotes. Perhaps a few typos corrected as well
(formatt -> format)
Add style for menu[type=list] and dialog