Admin controls to select a date range for reports
FIX: PageTracker was not sending the proper page title through at all
times.
FIX: fa- check was incorrect on user card
UX: remove 'ago' from user streams
UX: add the word it's before standard spam names to form a complete sentence
tighten up flag copy for off-topic and notify mods
minor debouncing fixes for user card
remove duplicate code

fix issue where clicking on
the same user in 2 locations on the page would not work correctly

centralize logic
Merge pull request #2947 from awesomerobot/master

updated loading spinner
correct positioning of user card on sites with custom headers
fix regression (can not click on links in card)
tweak positioning when it has no room to right
FEATURE: log impersonations
minor login copy tweaks
address odd user card issue with buttons
some cleanup for new usercards on dark themes