同步操作将从 openstack/swift 强制同步，此操作会覆盖自 Fork 仓库以来所做的任何修改，且无法恢复！！！
确定后同步将在后台操作，完成时将刷新页面，请耐心等待。
Juno EOL
Swift 2.5.0
Swift 2.4.0
Icehouse EOL
Swift 2.3.0
Swift 2.3.0-rc2 milestone (2.3.0rc2)
Tag to preserve Erasure Code development history
Swift 2.3.0-rc1 milestone (2.3.0rc1)
Swift 2.2.2 release
Swift 2.2.2rc1
Swift 2.2.1 release
Swift 2.2.1c1 release candidate
Swift 2.2.1.rc1
Swift 2.2.0
Swift 2.2.0-rc1 milestone (2.2.0.rc1)
Havana EOL
Swift 2.1.0 release
Swift 2.1.0.rc1
Swift 2.0.0 release
Swift 2.0.0-rc2
