Akka, dependency

Akka for java, maven dependency 를 정리.

<properties>
		<!-- Akka -->
		<akka.artifact.version>2.11</akka.artifact.version>
		<akka.version>2.4.2</akka.version>
	</properties>
	<dependencies>
	<!-- https://mvnrepository.com/artifact/com.typesafe.akka/akka-agent_2.11 -->
		<dependency>
			<groupId>com.typesafe.akka</groupId>
			<artifactId>akka-agent_${akka.artifact.version}</artifactId>
			<version>${akka.version}</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/com.typesafe.akka/akka-actor_2.11 -->
		<dependency>
			<groupId>com.typesafe.akka</groupId>
			<artifactId>akka-actor_${akka.artifact.version}</artifactId>
			<version>${akka.version}</version>
		</dependency>
		<dependency>
			<groupId>com.typesafe.akka</groupId>
			<artifactId>akka-cluster_${akka.artifact.version}</artifactId>
			<version>${akka.version}</version>
		</dependency>
		<dependency>
			<groupId>com.typesafe.akka</groupId>
			<artifactId>akka-slf4j_${akka.artifact.version}</artifactId>
			<version>${akka.version}</version>
		</dependency>
	</dependencies>