fixed submodule instructions in README
updated ratings to most recent values except for SPI

The SPI values do not seem to be available anymore. The website had a redesign and I can not find the SPI page anymore...
However, the SPI ratings were the most stable ratings of all anyway.
updated ratings to most recent values except for SPI

The SPI values do not seem to be available anymore. The website had a redesign and I can not find the SPI page anymore...
However, the SPI ratings were the most stable ratings of all anyway.
Merge branch 'master' of github.com:walachey/football-worldcup-simulator into competition_2014
fixed calculation of summary statistics