final edits
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  Add references.
  Minor parallel updates
  Update notebooks for the adv ipython session.
  Include volume visualization for pycortex
  More slideshow fixes
  Delete large files since github doesn't like them anyways
  Fix up slideshow mode
  Upload the scientific workflows notebooks and resources
Final edits...hopefully
Merge pull request #4 from jarrodmillman/master

Final edits