Fixed an error with s.find("asdf").
Added s.cd.
Fixed a bug that was preventing s.find from being truly recursive.
Added e.get which handles !magic properties, and made s.map call it.
Changed the arguments in s.forEach, s.map, and s.filter.
Added s.every, s.some, s.reduce, and s.reduceRight, so that we have control over the arguments.