Merge branch 'release_0_2_6' into 'master'

Release 0.2.6

See merge request !13

pom.xml

@@ -8,7 +8,7 @@
 
   <groupId>de.monticore.lang.monticar</groupId>
   <artifactId>cnnarch-mxnet-generator</artifactId>
-  <version>0.2.5</version>
+  <version>0.2.6</version>
 
   <!-- == PROJECT DEPENDENCIES ============================================= -->
 
@@ -210,6 +210,7 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>2.19.1</version>
                 <configuration>
+                    <useSystemClassLoader>false</useSystemClassLoader>
                 </configuration>
             </plugin>
             <plugin>