Revert "add notice of pre-season testing"

This reverts commit dad9d9938c98ae23db251f02860c4773109b40f7.
result of 2012
add command of export db from MongoLab
add archive page of 2012 season
close 2012 season, and go to maintenance mode
update dependency
replace to new github logo
update Gemfile format
up to ruby 2.0.0
update dependency
Revert "close 2012 season, and go to maintenance mode"

This reverts commit 706f3acf1c91b09637ea9f21bd056fc33f6fc7c3.
ruby version 2.0.0 down to 1.9.3 because tweetstream does not support ruby 2.0 yet
support new mongoid
start 2013 season
add config-local for getting config data from Heroku
support new twitter widget
delete web
Merge branch 'back' of github.com:tdtds/gracoro-union into back