fixed wrong version 5.15 -> 5.15.0

Author: Jesus Barrasa

pom.xml

@@ -5,7 +5,7 @@
 
   <groupId>org.neo4j</groupId>
   <artifactId>neosemantics</artifactId>
-  <version>5.15</version>
+  <version>5.15.0</version>
   <packaging>jar</packaging>
   <name>neosemantics (n10s)</name>
   <description>n10s is a plugin that enables the use of RDF in Neo4j</description>