Merge pull request #3 from rdocking/master

Corrected a typo in the seminar_03 lattice file
Completed restoring the pedantic, detailed account of DEA by devStage

Did in an dmd file. Also including the md file and figures in the repo. May not work so well if other figures are written here an interfere. OK for now.
Eliminate all unnecessary code in script that does DEA for gType * simplified devStage

The other “goodies” will reappear shortly, probably in a .rmd file.
Refactoring script that supports lecture on DEA by gType and simplified devStage
Refactoring the DEA of photoRec data

Putting the various DEA in one script. Lecture support scripts engage with those results and make examples, figures, etc. for lectures.
New names for some results files. gitignoring others that are huge.

Others will need to use the code and data in the repo to compute these objects for themselves if they want them.
Reinstating my custom lattice theme and then remaking figures.

The ugly defaults were killing me. gitignoring my .Rprofile where this is done because others will not have my theme.
Clean up and re-run code supporting lecture re: DEA by gType * devStage
New seminar: Markdown and R Markdown
Add seminar04_compileNotebook-dataAggregation-twoGroupComparison
Link to seminar04_compileNotebook-dataAggregation-twoGroupComparison
Add MOU, Markdown Here and Rscript for rendering

Also mention using a Makefile, a topic in itself really.
Add the Windows SSL certificate problem
Add further reading
Add instructions to compile a notebook
New seminar: Git and GitHub