[fedora-java] XMvn 0.4.2 release notes

[Mikolaj Izdebski]

What's new in XMvn 0.4.2

* Minor bugfixes

   * Empty fields in artifact aliases

     Version 0.4.0 introduced a regression - empty fields in artifact
     aliases were not replaced by corresponding fields from the main
     artifact.  This bug was fixed in version 0.4.2.