Reverted target version to 1.1

Author: SundermannC

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>io.github.universal-variability-language</groupId>
     <artifactId>fm-metamodel</artifactId>
-    <version>1.2-SNAPSHOT</version>
+    <version>1.1</version>
 
     <name>UVL Java Metamodel</name>
     <description>This project host a java feature model metamodel for UVL </description>