Add delayed_job
Add delayed_job configuration and bare tasks
Bump tf2r version in Gemfile
Add RankScrapingJob
Add Tf2rRankAdder and specs
Add missing require
Modify tf2r_users migration to remove NOT NULL constraint on rep columns

Yes, modifying old migrations, but only one dev machine, so #yolo.
Add New and update Raffle scraping jobs; add RaffleInfoAdder
Fix RaffleInfoAdder bugs
Bump tf2r version
Change jobs names
Add Raffle scopes; use them in NewRafflesJob
Add UpdateRafflesJobs
Update scrape tasks
Add jobs documentation
Fix tf2r_user spec