Adjust nupic for the merge of numenta/nupic.core#179

Fixes #1298 .

This PR is NOT ready to merge until:

* [ ] numenta/nupic.core#179 is merged
* [ ] `.nupic_modules` is updated accordingly
Yeah, this is similar to the situation of the pip-installable PR. But adding a branch to `numenta:nupic.core` can only be done by a owner.