Extract autoconfig

- Create separate spring-shell-autoconfigure and keep
  all autoconfig features there.
- Fixes #329

spring-shell-starter/pom.xml

@@ -4,17 +4,21 @@
 
 	<artifactId>spring-shell-starter</artifactId>
 	<name>Spring Shell Starter</name>
-	<packaging>jar</packaging>
+	<packaging>pom</packaging>
 
 	<parent>
 		<groupId>org.springframework.shell</groupId>
 		<artifactId>spring-shell-parent</artifactId>
 		<version>3.0.0-SNAPSHOT</version>
 	</parent>
-	
+
 	<description>Starter Dependency for Using Spring Shell</description>
 
 	<dependencies>
+		<dependency>
+			<groupId>org.springframework.shell</groupId>
+			<artifactId>spring-shell-autoconfigure</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.shell</groupId>
 			<artifactId>spring-shell-core</artifactId>
@@ -36,5 +40,5 @@
 			<artifactId>spring-shell-table</artifactId>
 		</dependency>
 	</dependencies>
-	
+
 </project>