Typo correction
Merge pull request #6 from sdrdis/patch-1

Typo correction
extra spaces removed?
Converted lesson.Rmd's to lesson.yaml's; removed former.
fixed small typo
notes for VIF
replaced all remaining rmd with yaml in rprog
Variance inflation factors in progress.
renamed ols lesson Residuals
created Least_Squares_Estimation lesson based on Brian's lecture
Merge remote-tracking branch 'origin/master'
variance inflation factors in progress.
new residuals variation lesson to explain r^2 based on brian's lecture
fixed up lesson on residual variation
fixed problems with residual variation lesson and added dependson.txt file to least square lesson
added ANY_of_exprs to residual variation lesson
VIF in progress.
Completed first draft of Variance Inflation Factors.
Minor revisions to Variance Inflation Factors.
more lesson fixes, removed dependson.txt in LSE lesson and put conditional in initLesson to load different demo files (with and without manipulate) depending on if they're using RStudio or not.
implemented 2 of Birone's suggestions in lse lesson
conflict removed (fixed manifest)

Merge remote-tracking branch 'kuiper/master'

Conflicts:
	Regression_Models/MANIFEST