Add a `uniq` method to remove string duplicates from array
Add a `uniq` method to remove string duplicates from array

Close #40

mickeyreiss/js-quantities,mickeyreiss/js-quantities,glassbead0/js-quantities,glassbead0/js-quantities,jhericks/js-quantities,jhericks/js-quantities,gentooboontoo/js-quantities,jhericks/js-quantities,mickeyreiss/js-quantities,gentooboontoo/js-quantities,jhericks/js-quantities,glassbead0/js-quantities,gentooboontoo/js-quantities,gentooboontoo/js-quantities,glassbead0/js-quantities,mickeyreiss/js-quantities