bnet: catch stoul exceptions
game: catch stoul exceptions
aura: don't sync with cstdio as we don't use it anyway and it nets a nice performance increase
bnet: remove an extra comment
aura: fix bot leaving the game when it's public (credit to Crab for both the report and the triage)
aura: bump version number to 1.23
travis: add travis.yml file so we can use this cool tool
travis: fix a typo
readme: add travis icon
travis: download gcc-4.8.1 and clang-3.4 for compiling
makefile: don't override CC and CXX environment variables
travis: set CC env variable
aura: fix a bug in loading data from ip-to-country.csv

ip-to-country.csv file used to be in a slighly different format so recent aura loaded the wrong data into the temp table. Thanks to Crab for reporting it.