增加http block、redirect、monit、whitelist、replace功能

修改清空配置库sql语句
修改欺骗ip策略可空

src/main/webapp/WEB-INF/views/cfg/common/ipForm.jsp

@@ -169,7 +169,7 @@ $(function(){
 								            <label class="control-label col-md-3"><font color="red">*</font><spring:message code="group_name"/></label>
 								            <div class="col-md-6">
 								            	<select id="dnsStrategyId" name="dnsStrategyId" class="selectpicker show-tick form-control required">
-													<option value=""><spring:message code="select"/></option>
+													<option value="0"><spring:message code="select"/></option>
 					               					<c:forEach items="${policyGroups }" var="policyGroup">
 														<option value="${policyGroup.groupId}" <c:if test="${_cfg.dnsStrategyId==policyGroup.groupId }">selected</c:if>><spring:message code="${policyGroup.groupName}"/></option>
 							              			</c:forEach>