Add ggplot2 lectures
Middle initial
Change author
More of Jeff's transcripts for EDA
Change author
Don't download data if it already exists
Skip stuff on graphics devices; covered in separate lecture
Images for expository graphs lecture
Promotion
Add reminder
Don't load data unless you have to
Change author; don't download data
Copy more images for exploratory plots
Clean up code a little
Merge two exploratory graphs lectures into one lecture
Rename old exploratory graphs lectures
Merge remote-tracking branch 'origin/master'

* origin/master:
  Added 01_06
  Finished lecture 01_05
  Added lecture on regression to the mean
  3rd lecture finalized
  Finished 2nd and 3rd lectures in module 1
  Made a name change
  Finished lecture 01_01.RmD
  Worked on lecture 01
  Worked a lot on the intro regression lectures
  first preprocessing lecture
  started preprocessing lecture
  Added some regression lectures
Merge branch 'master' into eda

* master:
  Added 01_06
  Finished lecture 01_05
  Added lecture on regression to the mean
  3rd lecture finalized
  Finished 2nd and 3rd lectures in module 1
  Made a name change
  Finished lecture 01_01.RmD
  Worked on lecture 01
  Worked a lot on the intro regression lectures
  first preprocessing lecture
  started preprocessing lecture
  Added some regression lectures
Add info about MAACS
Mkdir 'old' directory