Added new set of material for a R only bootcamp

This material is based on @karthikram's bootcamp that was held in Canberra.
added notes on documentation.
Added notes on documentation addresses issue #112, renumbered sections.
Removed numbering both for sections and exercises within.
Merge branch 'adding-instructor-notes-to-novice-bash' into switching-to-kramdown
Experimenting with Kramdown
Merge branch 'master' into switching-to-kramdown
Adding section headers inside div blocks in Markdown files
Jekyll uses Redcarpet by default for translating Markdown to HTML, but
Redcarpet doesn't handle Markdown in HTML blocks (like div's).  This
PR switches to Kramdown, which *does* handle md-in-html.  However,
Kramdown translates single and double quotes into curly quotes by
default, which confuses downstream tools, so we have to turn that off.
While we're there, we also tell it to output character entities as
character entities.
Putting YAML header in LICENSE
Building tool to check glossary entries
Ignoring 'tmp' directory when building site
Fixing typo in reference to glossary entry
Updating glossary tool and glossary entries
Filling in glossary entries
Only two bootcamps ever included instructor bios and pictures in their homepages, and it would be better in any case to come up with a way to link to the team.html page on the main Software Carpentry website so that we don't have to maintain two parallel copies of this material.  The same is true of sponsoring organizations and badges.
Updating README
Filling in another 40-odd glossary entries
Incorporating many of the changes recommended by @wking, but still
unsure how to discuss the `-u` flag to `git push`.  If we create a new
repository on GitHub *without* a license or README, GitHub's own
instructions are to:

    touch README.md
    git init
    git add README.md
    git commit -m "first commit"
    git remote add origin git@github.com:gvwilson/no-initial-files.git
    git push -u origin master

or to:

    git remote add origin git@github.com:gvwilson/no-initial-files.git
    git push -u origin master

How do we explain (or explain away) the use of `-u` in this case when
it isn't needed to clone an existing repository that has files?
Switching to numbered list for lesson links in index files