change admin badge to a 'staff' text badge
hide text on thread buttons for admins and forum managers
Merge pull request #189 from duckduckgo/doug/simplify-admin-buttons

Simplify Thread Buttons for Admins (Small Screens)
Merge pull request #188 from duckduckgo/doug/admin-badge

change admin badge to a 'staff' text badge
Basic community platform user contribution stats admin page.
Change stats ranges to cover arbitrary periods rather than calendar months

Currently, 90 day periods.
Add headings for stats categories.
Model is 'Comment', not 'comment'
Replace remaining class names with plain names
Count only thread replies in Thread comment contributors.
Maybe some day I'll forgive myself for this github stats script.
Merge pull request #190 from jbarrett/admin-stats-page

Admin stats page