[maven-release-plugin] prepare release warnings-4.2
[maven-release-plugin] prepare release warnings-4.2

SvenLuebke/warnings-plugin,recena/warnings-plugin,amuniz/warnings-plugin,amuniz/warnings-plugin,jglick/warnings-plugin,jenkinsci/warnings-plugin,jglick/warnings-plugin,SvenLuebke/warnings-plugin,recena/warnings-plugin,SvenLuebke/warnings-plugin,jenkinsci/warnings-plugin,michelepagot/warnings-plugin,michelepagot/warnings-plugin,amuniz/warnings-plugin,jenkinsci/warnings-plugin,michelepagot/warnings-plugin,recena/warnings-plugin