Fix links to glossary

@r-gaia-cs broke some links with #394. This fix this links.

~~~
$ for i in $(grep -rl '../../../gloss.html' novice)
do sed -i 's@../../../gloss@../../gloss@' $i
done
$ grep -re '../../../gloss.html' novice
$ grep -re '../../../gloss.html' intermediate
~~~

Thanks to @lexnederbragt.
Merge pull request #407 from r-gaia-cs/fix-link-gloss2

Fix links to glossary
Merge branch 'master' of github.com:dbarneche/bc into merge-Rmd
Moved novice R lessons from r/novice to novice/r.
Improvements to Windows setup

1. The current structure and phrasing caused several students to try
   to either only install the SWC Windows installer, or try to install
   it before installing one one of it's dependencies.

2. We discovered an edge case where a user tried to run the
   installer without an internet connection which causes an error
   since nano can't be downloaded.
Match number of samples and math in novice shell Introduction

The number of samples is originally reported as 1520, but when
discussing how many possible combinations there are it is treated
as 300 samples. 1520 leads to some fairly crazy numbers for the
amount of runs involved so reduce the number of samples to 300
to match the existing calculations.
Make Challenge 2 in the novice shell lesson 5 consistent

This challenge used two different file names, neither of which was
consistent with part of the problem description. I chose the
longest.sh file name and made the challenge consistent for this
choice.
Typo fix in Challenge 4 of Novice Shell 5
Remove comparison of cp and mv from challenge in novice shell

Challenge 3 in /novice/shell/02 asks why mv and cp behave
differently in the case of providing multiple file names, but as
far as I can tell they behave exactly the same.
Remove discussion of ls -s and -h

This material doesn't seem to me to accomplish a lot with respect
to the objectives of the lesson and it adds a feeling of "the
shell is complicated" right up front by talking about how the
default output is confusing, showing a "human" flag that
presents things in bytes (which isn't *that* human friendly for
novices), and discussing how memory works.
Merge pull request #408 from jdblischak/merge-Rmd

Relocated novice Rmd lessons
Removing raw material for branding (such as the SVG source for badges) - this material should have been elsewhere all along.
Updating README to reflect removal of branding materials
Merge pull request #416 from gvwilson/removing-branding

Removing branding materials
Merge branch 'master' of https://github.com/swcarpentry/bc
removed .Rproj from tracking
made changes to .gitignore inside ggplot2 dir, reverted global .gitignore to previous
ignore .Rproj files and .Rproj.user dir
started section on philosphy of ggplot2 and grammar of graphics; set up introduction to ggplot() function; minor markup and code formatting edits
updated todos in readme