MRBS 1.12.2 等保2.0二级整改完整提交

包含：登录失败锁定、90天密码有效期、30分钟会话超时、
强制改密、登录审计日志、屏幕水印、企业背景图、
备案信息固定底部、favicon、登录页JS修复等全部改动

web/upgrade/5/mysql.sql

@@ -0,0 +1 @@
+# Nothing to do

web/upgrade/5/post.inc

@@ -0,0 +1,26 @@
+<?php
+namespace MRBS;
+
+$exists = $upgrade_handle->table_exists(_tbl('users'));
+
+/* If the table does not exist */
+if (!$exists)
+{
+  /* Then create it */
+  $cmd = "
+CREATE TABLE " . _tbl('users') . "
+(
+  /* The first four fields are required. Don't remove. */
+  id        ".$upgrade_handle->syntax_createtable_autoincrementcolumn().",
+  level     smallint DEFAULT '0' NOT NULL,  /* play safe and give no rights */
+  name      varchar(30),
+  password  varchar(40),
+  email     varchar(75),
+
+  /* The following fields are application-specific. However only int and varchar are editable. */
+
+
+  PRIMARY KEY (id)
+);";
+  $upgrade_handle->command($cmd);
+}