[maven-release-plugin] prepare for next development iteration

network/pom.xml

@@ -72,7 +72,7 @@ limitations under the License.
   <parent>
     <artifactId>shared</artifactId>
     <groupId>de.muehlencord</groupId>
-    <version>1.3.0</version>
+    <version>1.3.1-SNAPSHOT</version>
   </parent>
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -80,5 +80,5 @@ limitations under the License.
 
   <url>http://maven.apache.org</url>
 
-  <version>1.3.0</version>
+  <version>1.3.1-SNAPSHOT</version>
 </project>