Upgrade Spring Boot to 2.0.0.RELEASE

Closes gh-1007

samples/javaconfig/rest/src/main/java/sample/SecurityConfig.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 the original author or authors.
+ * Copyright 2014-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -43,7 +43,7 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter {
 
 	@Autowired
 	public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
-		auth.inMemoryAuthentication().withUser(User.withDefaultPasswordEncoder()
-				.username("user").password("password").roles("USER").build());
+		auth.inMemoryAuthentication().withUser(User.withUsername("user")
+				.password("{noop}password").roles("USER").build());
 	}
 }