Add an unstyled help menu
Merge branch 'help-pages' of github.com:unepwcmc/NRT into help-pages
Add NRT system diagram page
Style system diagram img
Merge branch 'help-pages' of github.com:unepwcmc/NRT into help-pages

Conflicts:
	server/views/about.hbs
Re-add accidentally deleted about copy
Merge pull request #286 from unepwcmc/arch-diagram

System architecture diagram