remove unused hidden-print css class
override settings update template to allow multiple namespaces
create site settings schema with arena setting
move settings link to navbar dropdown for both types
fix typo in game type form
set a hash default for last_it in hit_reader
clone the hit hash into last_hit instead of assigning it
replace integer time comparison with half rounded floats

This makes hit resolution a bit finer.

We replaced time in the hash with a hit_matcher variable based on
the current time, but rounded to half seconds(ish).

We still send the current timestamp to the web application, we just
do it later