Replace @import fonts with local @font-face fonts
Minor changes to nav menu; updated covers, index
Make buttons consistent, add header to index
Distinguish second-level heads in TOC

And add Jotform quiz to NC 2.
Change new test button wording

to 'Open chapter test' not just 'Open test'
NC: add test 3, typo in test 6
NC: add Jotform tests to chs 4, 5, 6, 7, 8
NC: typo in test 14
NC: Add Jotform tests to chs 9, 10, 11, 12, 13, 14, 15
Let nav-bar scroll out of view on small devices
Nav-bar scrolls out on smalls, bigger test iframe
Merge pull request #18 from emmaattwell/gh-pages

Merging 'Corrected images and answers' etc. on EPC
Regen _site incl latest EPC correx
Resize images

Resized and fixed borders on 3 images; proofreading correction to
chapter 3