Now with Gill Sans set up properly

Signed-off-by: Thomas Hodgson <thomas.hodgson@gmail.com>
Now only calling scripts in scripts.tex, and then using the files if they exist in setup-paper.tex
Now numbering captions
Added siunitx.sty, and used for formatting of word counts
Using Arara to call the scripts now
Now using isodate with the 'english' option, which means that I can use \daterange; biblatex now using compact dates
First draft of a syllabus setup
Added date time.sty
Now set up for Arara
Using default margins and section heading spacing
URLs now in sans font; bibliographies size \small; bibliographies in authoryear style
I don't need to fix the philex problem with blank slides at section beginnings any more
Trying out larger margins for papers
Now won't break when compiled with pdftex because the packages that require xelatex are inside \ifxetex
Now won't break when compiled with pdftex because the packages that require xelatex are inside \ifxetex
URLs the same as main font, and no \reversemarginpar
Simplified code for email in header
Merge branch 'master' into For-GitHub

Signed-off-by: Thomas Hodgson <thomas.hodgson@gmail.com>