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/16/post.inc

@@ -0,0 +1,12 @@
+<?php
+namespace MRBS;
+
+// Update the area table getting rid of NULLs for enable_periods and replacing them
+// with the default setting.
+
+global $enable_periods;
+
+// Convert booleans to 1 or 0, as the fields are tinyints/smallints
+$value = ($enable_periods) ? 1 : 0;
+
+$upgrade_handle->command("UPDATE " . _tbl('area') . " SET enable_periods=$value WHERE enable_periods IS NULL");