Pull requests for today

[Stéfan van der Walt]

Hi all,

As you can see, I've been very distracted from work this evening :)

Binary convex hull goodness:
https://github.com/scikits-image/scikits-image/pull/75

Super-fast re-building of the package for developers, using MD5 hashes
of Python files:
https://github.com/scikits-image/scikits-image/pull/74

Coin dataset--almost as good as the real thing:
https://github.com/scikits-image/scikits-image/pull/76

Please have a look, and let me have your critical yet witty feedback
on GitHub :)

Cheers
Stéfan