Merge branch 'master' of github.com:DataScienceSpecialization/courses

* 'master' of github.com:DataScienceSpecialization/courses:
  update
  nojekyll
  update ghpages
  update
  renamed prediction course
  update
Merge branch 'master' of github.com:DataScienceSpecialization/courses

* 'master' of github.com:DataScienceSpecialization/courses:
  Added some shiny stuff
  Fix graphs in colors lecture
  Re-export PDF slides
  Re-export PDF slides
  Copy with new name
  Re-export PDF slides
  update
  Added a second shiny lecture
  Added a second shiny lecture and some example apps
  Small changes to the slidify lecture
  Finished rCharts and added rgl and rMaps
  some image files in regression
  Added rstudio lecture and some images
  Some small edits
  Deleted a pdf file
  fixed date
Merge branch 'master' of github.com:DataScienceSpecialization/courses

* 'master' of github.com:DataScienceSpecialization/courses:
  added pdfs for brian in statinf
  Added some lecture files
  Added a bunch of pdfs
  Added some figures
  Fixed some errors
  recompiled 03_04
  Minor corrections to intro page
  Added a hw2
  Added hw2
  Worked on hw2
  Set correct answer for question 2
  Added a hw 2
  Fixed a small error
  Added HW files
  Added some homework
  update
Fix coding for dates
Evaluate date/time code
updates/modifications to yhat example
Zip file of data used in lecture
Update PDF/PNG slides
Rename pdf slides
Change Title fo article

Remove the v letter from the "towvards" letter
Change the expoent of Xip
Merge pull request #55 from leard/master

Update RMDs 01_04 and 02_01
Fix coding for dates
Evaluate date/time code
updates/modifications to yhat example
Zip file of data used in lecture
Update PDF/PNG slides
Rename pdf slides
Some new PDFs
Merge remote-tracking branch 'github/master'

* github/master:
  Rename pdf slides
  Update PDF/PNG slides
  Zip file of data used in lecture
  updates/modifications to yhat example
  Evaluate date/time code
  Fix coding for dates