2014.04.21
*old password migration when upgrade from cmailserver.
从cmailserver升级时支持密码不更改.
2014.04.11
*add company and department filter for Webmail address book.
Webmail地址薄增加公司和部门过滤功能(写邮件时&地址薄两处).
2014.04.06
*fix a Webmail bug for modify account's mailboxsize.
修改Webmail管理帐号中的邮箱大小数值不正确的Bug。
