Move Past Papers to PastPapers

Folder and file names without spaces are generally easier to deal with, especially on the internet
Remove unneeded files from copying from template
Reformatted Markdown.

Since a link is defined as [something](url), any ['s or ]'s in text have to be escaped. I've moved the links onto separate lines for now as it seemed cleanest though does add lots of <br>'s to the code.

Also added:
- a config file with some general items in to keep the markdown a bit happier.
- header info to a couple of html files so that they are noticed
- a "_layout" folder with a layout file. This specifies a template layout for the markdown files to be placed into. The rendered markdown is placed verbatim in place of the "{{ content }}" tag. This means that a css file can be specified without having to include the same bits of html in all md files.
Re-added line I missed out