rename FeignConfigurer to FeignConfiguration

fixes gh-91

docs/src/main/asciidoc/spring-cloud-netflix.adoc

@@ -416,7 +416,7 @@ Example spring boot app
 @ComponentScan
 @EnableAutoConfiguration
 @EnableEurekaClient
-public class Application extends FeignConfigurer {
+public class Application extends FeignConfiguration {
     @Bean
     public StoreClient storeClient() {
         //loadBalance plugs Feign into ribbon.  feign() works without load balancing.

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/feign/FeignConfiguration.java

@@ -18,7 +18,7 @@ import java.net.URI;
  * @author Spencer Gibb
  */
 @Configuration
-public class FeignConfigurer {
+public class FeignConfiguration {
     @Autowired
     ConfigurableEnvironmentConfiguration envConfig; //FIXME: howto enforce this?
 

spring-cloud-netflix-core/src/test/java/org/springframework/cloud/netflix/feign/SpringDecoderTests.java

@@ -29,7 +29,7 @@ import java.util.List;
 @SpringApplicationConfiguration(classes = SpringDecoderTests.Application.class)
 @WebAppConfiguration
 @IntegrationTest({ "server.port=0", "spring.application.name=springdecodertest", "spring.jmx.enabled=true" })
-public class SpringDecoderTests extends FeignConfigurer {
+public class SpringDecoderTests extends FeignConfiguration {
 
     @Value("${local.server.port}")
     private int port = 0;