Make rating column smaller
Merge pull request #7 from jiangtyd/jiangty/ratings_in_details

Make rating column smaller
asdf
Ranking and RankingEntry tests
Tournament tests (except from_scraper)
test for Tournament.from_scraper(). all model tests done.
dao tests, still wip
additional dao tests, still wip
asdf
challonge scraper: ignore matches without results
fix regions endpoint
sort regions
before trying mongomock
use mongomock
tests for tournament dao calls
dao tests complete
deleting unused player.py
starting tests for ranking.py
rankings.py tests done
tests for rating_calculators.py