Add UserOperationLog.

src/json/jsonobject.cpp

@@ -549,3 +549,8 @@ bool JsonObject::isDmsSimulator()
 {
     return getBool("dms","simulator");
 }
+
+int JsonObject::getOperationLogExpireDays()
+{
+    return QString(getJsonString("operatorlog", "expire")).toInt();
+}

src/json/jsonobject.h

@@ -110,6 +110,7 @@ public:
 	void setIpRouteList(const QList<QStringList>& list);
 	
 	QStringList getScreenSaverInfomation();
+    int getOperationLogExpireDays();
 
 
 private: