finish applying new colours for tier 9 (staff) and tier 8 (mods)
add star/tower glyphicons for mods/staff in Hall; in Hall, change admin's description of levels; create migration script for increasing admin tiers
add glyphicons to admin names, refactor code to reduce duplication of contrib.level style assignments, sort moderator name list sensibly
add fontello and change staff icon from tower to crown
add Community Guidelines document and its images; add jade modal for displaying it
delete unnecessary views/static/community-guidelines.jade
remove unnecessary style; fix spacing in tavern message
automatically assign admin:true when contributor level/tier is greater than 7, and assign admin:false when less than 8
remove admin checkbox from Hall - not needed now that level/tier 8 and 9 automatically turn on hero.contributor.admin
fix problem in chat of usernames hiding first part of message
move Community Guidelines from an included html page in a modal to a static page with no modal
complete the first draft of the Community Guidelines static page, with images renamed
fix community guidelines title tag
adjust layout of images in Community Guidelines

Alys TODO: replace paddedImage style and in-page clear:both style attributes  with styles that already exist elsewhere
Revert "fix problem in chat of usernames hiding first part of message"

This reverts commit 910e4ac0f9e9886a8d3439e197eae3b5c30848ad.
do proper fix for problem in chat of usernames hiding first part of message
add comment to explain the invisible username label (it confused the heck out of me until I realised)
remove test code that made the avatar names always visible in the header
use localisation strings for Wiki Administrators Emeritus and month names
adjust community guidelines modal for new static location and comment it out because not currently needed