Inconsistencies in collection methods

[kamicane]

1. The methods collection/map and collection/filter don't use the collection/make_ utility to switch between object/method and array/mehtod. The iterator functions are provided with numerical indices and an array is always returned.
2. collection/reject and collection/pluck should be fine once filter and map use make_
3. This is really minor but make_ could use lang/isNumber instead of typeof, to avoid using array iterators on objects like {length: NaN}

[millermedeiros]

going to move this into next release.. we waited for too long for v0.10... sorry about that.

[janandjill]

I don't know what he laid down but I'm afraid of it