Bump cdap.plugin.version to 2.13.1-SNAPSHOT

Author: psainics

pom.xml

@@ -62,7 +62,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <!-- version properties -->
     <cdap.version>6.11.0</cdap.version>
-    <cdap.plugin.version>2.13.0</cdap.plugin.version>
+    <cdap.plugin.version>2.13.1-SNAPSHOT</cdap.plugin.version>
     <guava.version>13.0.1</guava.version>
     <hadoop.version>3.3.6</hadoop.version>
     <hsql.version>2.2.4</hsql.version>