Built into SciTools user, rather than pelson.

This changes over the upload channel from pelson to SciTools.

I've tested that the upload would work for both Linux and Windows by pushing the branch to scitools rather than my own fork (travis: https://travis-ci.org/SciTools/conda-recipes-scitools/jobs/44379789, appveyor: https://ci.appveyor.com/project/pelson/conda-recipes-scitools-311/build/1.0.15 (not yet complete))