Split template into separate files per section

Francesco,

I split the template into separate files, as proposed. That includes pulling out your section into a new file, so I prefer you to check with any changes you've made in the last half hour or so and let you make the merge, rather than me simply pushing it directly.

Also ran dos2unix on the two jpcont* files, because git doesn't like DOS style file endings.

Checked that this all still runs cleanly through pdflatex