Laying out new material
started data.table demo
updated data.table demo, added .md file
Added comments and extra explanation to examples.  Also added .R file with just code
removed generated files
Moved Rmd file to new directory in intermediate/misc/data.table
initialized ggplot2 example
finished ggplot2 example, created makefile
hide results and fig in makefile using knitr options in Rscript
fixed options in Rmd, removed options from makefile
Removing explicit 'level' keys from Markdown files
*   Getting rid of old cheat sheets
*   Indenting error output cells
*   Removing explicit 'level' keys from Markdown files
*   Storing the generated files so that people who don't use those tools won't have to regenerate them.
*   Modifying .gitignore to reflect this.
*   Updating the Makefile to run Jekyll exactly once.
*   Command to install on the server
*   No longer worrying about making a page of images
*   Better (more guessable) name for the target that builds the website
*   Fixing image paths
*   Fixing up glossary entries
rendered md and R files from Rmd
Merge branch 'sticking-with-jekyll' of github.com:gvwilson/bc into sticking-with-jekyll
Move @dhaine contribution to novice/r/ref
makefile call knitr:: w/o loading library
Merge pull request #347 from gvwilson/sticking-with-jekyll

Alternative build: still using Jekyll
added figures
Merge branch 'master' of github.com:dbarneche/bc into merge-Rmd
clarified chunk that would hide code and figs