Revert to deprecated boot APIs to support boot 1.3

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/ZuulConfiguration.java

@@ -24,8 +24,8 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.autoconfigure.web.ErrorController;
 import org.springframework.boot.autoconfigure.web.ServerProperties;
 import org.springframework.boot.autoconfigure.web.ServerPropertiesAutoConfiguration;
+import org.springframework.boot.context.embedded.ServletRegistrationBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.web.servlet.ServletRegistrationBean;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.cloud.client.discovery.event.HeartbeatEvent;
 import org.springframework.cloud.client.discovery.event.HeartbeatMonitor;

spring-cloud-netflix-eureka-server/src/main/java/org/springframework/cloud/netflix/eureka/server/EurekaServerConfiguration.java

@@ -31,8 +31,8 @@ import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.embedded.FilterRegistrationBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.netflix.eureka.EurekaConstants;

spring-cloud-netflix-hystrix-dashboard/src/main/java/org/springframework/cloud/netflix/hystrix/dashboard/HystrixDashboardConfiguration.java

@@ -40,8 +40,8 @@ import org.apache.http.params.HttpParams;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration;
+import org.springframework.boot.context.embedded.ServletRegistrationBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.web.servlet.ServletRegistrationBean;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

spring-cloud-netflix-turbine/src/main/java/org/springframework/cloud/netflix/turbine/TurbineHttpConfiguration.java

@@ -19,8 +19,8 @@ package org.springframework.cloud.netflix.turbine;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass;
+import org.springframework.boot.context.embedded.ServletRegistrationBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.web.servlet.ServletRegistrationBean;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.cloud.client.discovery.DiscoveryClient;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;