Make all @Bean methods public

Fixes gh-1571

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/MetricRepositoryAutoConfiguration.java

@@ -133,7 +133,7 @@ public class MetricRepositoryAutoConfiguration {
 
 		@Bean
 		@ConditionalOnMissingBean(name = "metricsExecutor")
-		protected Executor metricsExecutor() {
+		public Executor metricsExecutor() {
 			ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
 			return executor;
 		}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafAutoConfiguration.java

@@ -106,7 +106,7 @@ public class ThymeleafAutoConfiguration {
 		}
 
 		@Bean
-		protected SpringResourceResourceResolver thymeleafResourceResolver() {
+		public SpringResourceResourceResolver thymeleafResourceResolver() {
 			return new SpringResourceResourceResolver();
 		}
 	}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.java

@@ -294,7 +294,7 @@ public class WebMvcAutoConfiguration {
 			}
 
 			@Bean
-			protected ResourceHttpRequestHandler faviconRequestHandler() {
+			public ResourceHttpRequestHandler faviconRequestHandler() {
 				ResourceHttpRequestHandler requestHandler = new ResourceHttpRequestHandler();
 				requestHandler.setLocations(Arrays
 						.<Resource> asList(new ClassPathResource("/")));