More capstone
Background
Merge branch 'master' into capstone

* master:
  first weeks dst
  Rename RR class
  Start updating/cleaning
  Clean up slides/code
  Rename directories to remove numeric prefix
  Fix some typos
  Move slidify to data products
  Start slidifying RR Concepts lecture
added first few overviews to jeff's data scientist toolkit course
Merge branch 'master' of https://github.com/jtleek/modules
Background
added more overviews for data science toolbox
Questions to answer
Merge pull request #57 from rdpeng/capstone

Capstone
Merge pull request #56 from ncarchedi/master

First few overviews for data science toolbox course
big data lecture
Merge branch 'master' of https://github.com/jtleek/modules into jeff