Proposal: add ordNub somewhere in containers

[Henning Thielemann]

On Mon, 13 Nov 2017, Gershom B wrote:

> The discussion period is well over and it seems the consensus is for
> adding this, basically as David proposes.  -- i.e. ordNub, and
> ordNubOn, but not ordNubBy. (and also the -1 variants and the int-
> variants). I think the only module name proposed to add them to is
> Data.Containers.ListUtils, so I guess that stands.

I think there should be some more thoughts on a good module name. E.g. use 
of plural (Utils vs. Util) - singular makes more sense in qualified 
identifiers, use of abbreviations (Util vs. Utility) - we have 'import ... 
as' for abbreviations, consistency with other data structures - where 
would we put ordNub for Seq, in Data.Container.SequenceUtility or in 
Data.Sequence?