pom: Set version to 1.6.0

Author: rousso

pom.xml

@@ -3,7 +3,7 @@
 
   <groupId>eu.europa.ted.eforms</groupId>
   <artifactId>eforms-core-java</artifactId>
-  <version>1.6.0-SNAPSHOT</version>
+  <version>1.6.0</version>
 
   <name>eForms Core Library</name>
   <description>API and tools for eForms applications.</description>