[m-rev.] for review: Add take_while and drop_while to the list module

[Mark Brown]

Hi Paul,

On Thu, Apr 21, 2016 at 11:11 AM, Paul Bone <paul at bone.id.au> wrote:
> For review by anyone
>
> ---
>
> Add take_while and drop_while to the list module

Are you aware there is already a takewhile predicate in the list module?

Cheers,
Mark