Add bin/git-contest
Add git-contest-init/start/finish/submit
Edit git-contest/git-contest-init
Add common.rb
Add load config
Edit Gemfile
Move bin/common.rb -> lib/git/contest/
Add specs
Edit git.contest.dirver.codeforces
Improve git-contest-submit
Improve git-contest-submit
Add git/contest/driver/driver_event
Improve git-contest-submit
Add git/contest/git
Improve git-contest-init
Improve git-contest-init
Add git/contest/driver/aizu_online_judge
Improve git-contest-submit
Fix git/contest/git
Improve git-contest-submit / git/contest/driver/aizu_online_judge