Merge branch 'release_0_2_6' into 'master'

Release 0.2.6

See merge request !13
2 jobs for master in 5 minutes and 21 seconds (queued for 5 minutes and 38 seconds)
Status Job ID Name Coverage
  Windows
passed #216276
Windows10
masterJobWindows

00:02:11

 
  Linux
failed #216277
masterJobLinux

00:03:09

 
Name Stage Failure
failed
masterJobLinux Linux
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.1:deploy (default-deploy) on project cnnarch-mxnet-generator: Failed to deploy artifacts: Could not transfer artifact de.monticore.lang.monticar:cnnarch-mxnet-generator:jar:jar-with-dependencies:0.2.6 from/to se-nexus (https://nexus.se.rwth-aachen.de/content/repositories/embeddedmontiarc-releases/): Failed to transfer file https://nexus.se.rwth-aachen.de/content/repositories/embeddedmontiarc-releases/de/monticore/lang/monticar/cnnarch-mxnet-generator/0.2.6/cnnarch-mxnet-generator-0.2.6-jar-with-dependencies.jar with status code 400 -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
ERROR: Job failed: exit code 1