block-in regional series computation
add tables for tracking regional results
migrate model to add regional series tables
add category reference to regional pilot records
add category reference to regional pilot records
ensure year, category, region methods
model regional results
remove definition of HARD_ZERO duplicated from sa_computer.rb
add processes to initiate regional computation
invoke regional computation after flights computed
progress on regional computation
model regional series results
relate regional_pilot to category
add route to show regional series results
add navigation link for regional results
block-in view of regional results
correctly identify regions; mock results
use four keys rather than pc_result for lookup/create
progress on display of regional series result
do not group twice