Enhance o2.CollectionHelper

[v0lkan]

each, map, reduce, detect, select, reject, all, any, include, invoke, pluck, max, min, sortBy, groupBy, toArray, sizeOf, first, rest, last, compact, flatten, without, union, intersection, difference, uniq, zip, indexOf, lastIndexOf, range, bind, bindAll, memoize, delay, defer, throttle, debounce, once, after, wrap, compose, keys, values, functions, extend, defaults, clone, tap

are a few methods that can be added

[v0lkan]

done. closing.