free event can be check in.
update git.io link.
change sms message.
add db:migrate schema.
Merge pull request #601 from saberma/saberma-feature/free-event-can-be-check-in

免费活动也会发送签到码短信
show user phone.
Merge pull request #605 from saberma/saberma-enhancement/show-user-phone

签到列表显示用户手机号码
show participant created_at.
Merge pull request #606 from saberma/saberma-enhancement/participants-index-order-by-id

签到列表显示按id倒序排列
password typo in config/database.yml.example.mysql2
Merge pull request #610 from lytsing/master

password typo in config/database.yml.example.mysql2
 add ng-cloak to all elements for good experience
Merge pull request #612 from 19wu/cloak_fix

 add ng-cloak to all elements for good experience
fixed deleted ticket error.
fixed deleted ticket export error.
increment sms limit.
update order stat rule.
Merge branch 'master' of git://github.com/19wu/19wu
Merge pull request #621 from saberma/master

修正部分退款导致统计不正确的问题
add alipay check rake.