Using python wheels for binary packaging.

Switched from bdist deployment to wheels. Using wheels in attempt to
package nupic and dependencies and upload them all to S3. If this works,
I'll try to get regression tests installing from wheels before moving on
to OS X.
Updates nupic.core to f612cb23d322ee006c63c6a4c40de39cf086373c.
Merge pull request #1627 from rhyolight/deploy-wheels

Using python wheels for binary packaging.
Merge branch 'master' of github.com:numenta/nupic
Merge pull request #1628 from numenta-ci/core-update-sha

Updates nupic.core to latest built SHA.
Merge pull request #1629 from scottpurdy/master

Add pycapnp dependency.
Merge branch 'master' of github.com:numenta/nupic