small tidy to make the for loop a bit prettier

Got to confess, I prefer the implicit 'wrap' collections functionality
(rather than 'decorate') as it introduces less line noise- and  of course
the 'asList' isn't necessary because the for-comprehension can operate on
an iterable...
Let's use ryans support for paged org-membership

...just because he got there first with the pull-request!

https://github.com/kohsuke/github-api/pull/66

(let's hope it gets merged- if not, I can release a fork)
Merge pull request #1 from guardian/tweaks

Tweaks