Don't register with consul in bootstrap.

This allows the normal consul lifecycle to register and properly deregister when using config client discovery.

fixes gh-213

spring-cloud-consul-sample/pom.xml

@@ -48,6 +48,10 @@
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-starter-consul-all</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-config</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-starter-feign</artifactId>