Remove application.yml and initialize properties within ModuleLauncherProperties

Add javadoc

spring-cloud-stream-module-launcher/src/main/java/org/springframework/cloud/stream/module/launcher/ModuleLauncherConfiguration.java

@@ -40,7 +40,7 @@ public class ModuleLauncherConfiguration {
 	private ModuleLauncherProperties properties;
 
 	/**
-	 * Sets up the default Aether-based module resolver, unless overridden
+	 * Sets up the default Aether-based module resolver, unless overridden.
 	 */
 	@Bean
 	@ConditionalOnMissingBean(ModuleResolver.class)

spring-cloud-stream-module-launcher/src/main/java/org/springframework/cloud/stream/module/launcher/ModuleLauncherProperties.java

@@ -21,14 +21,24 @@ import java.io.File;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 
 /**
+ * Contains configuration properties for the module launcher.
+ *
  * @author Ilayaperumal Gopinathan
+ * @author Marius Bogoevici
  */
 @ConfigurationProperties
 public class ModuleLauncherProperties {
 
-	private File localRepository;
+	/**
+	 * File path to a locally available maven repository, where modules will be downloaded.
+	 */
+	private File localRepository = new File(System.getProperty("user.home")
+			+ File.separator + ".m2" + File.separator + "repository");
 
-	private String remoteRepository;
+	/**
+	 * Location of a remote maven repository from which modules will be downloaded, if not available locally.
+	 */
+	private String remoteRepository = "https://repo.spring.io/libs-snapshot";
 
 	public void setRemoteRepository(String remoteRepository) {
 		this.remoteRepository = remoteRepository;

spring-cloud-stream-module-launcher/src/main/java/org/springframework/cloud/stream/module/launcher/ModuleLauncherRunner.java

@@ -32,7 +32,6 @@ import org.springframework.util.StringUtils;
  */
 @Component
 @ConfigurationProperties
-// TODO: use a prefix
 public class ModuleLauncherRunner implements ApplicationRunner, InitializingBean {
 
 	private final static Log log = LogFactory.getLog(ModuleLauncherRunner.class);

spring-cloud-stream-module-launcher/src/main/resources/application.yml

@@ -1,2 +0,0 @@
-localRepository: ${user.home}${file.separator}.m2${file.separator}repository
-remoteRepository: https://repo.spring.io/libs-snapshot