Adding wu.filter, wu(fn).filter, wu.Iterator.filter, and wu(fn).map
Adding wu.filter, wu(fn).filter, wu.Iterator.filter, and wu(fn).map

jonrimmer/wu-babel,besarthoxhaj/wu.js,besarthoxhaj/wu.js,besarthoxhaj/wu.js,fitzgen/wu.js,jonrimmer/wu-babel,fitzgen/wu.js,besarthoxhaj/wu.js,fitzgen/wu.js