update version

Author: ianopolous

README.md

@@ -38,7 +38,7 @@ for Maven, you can add the follwing sections to your POM.XML:
     <dependency>
       <groupId>com.github.multiformats</groupId>
       <artifactId>java-multiaddr</artifactId>
-      <version>v1.1.1</version>
+      <version>$latest_version</version>
     </dependency>
   </dependencies>
 ```

pom.xml

@@ -4,7 +4,7 @@
 
 	<groupId>io.ipfs</groupId>
 	<artifactId>multiaddr</artifactId>
-	<version>1.2.0</version>
+	<version>1.3.0</version>
 	<packaging>jar</packaging>
 
 	<name>multiaddr</name>