Merged in the checklists in the assets repo, as well as some clean up

- note that the admin checklist hasn't been merged

clean up includes:
- rewording/additions here and there for clarity
- cleaned up and line wrapping of the HTML
- put in some sensible new sections (mostly in the Organiser section)
- added a checkbox list bullet style (a frill, I know)
Merge pull request #418 from pipitone/clean-up-checklists

Merged in the bootcamp checklists in the assets repo, as well as some all around clean up