[maven-release-plugin] prepare release epubcheck-v4.0.0-alpha2
[maven-release-plugin] prepare release epubcheck-v4.0.0-alpha2

e10/epubcheck,karthikeyansam/epubcheck,e10/epubcheck,Hasimir/epubcheck,MinFu/epubcheck,Hasimir/epubcheck,karthikeyansam/epubcheck,w3c/epubcheck,vengattech/epubcheck,Hasimir/epubcheck,francisco-sanchez-molina/epubcheck,IDPF/epubcheck,e10/epubcheck,ztalker/epubcheck,karthikeyansam/epubcheck,looknear/epubcheck,karthikeyansam/epubcheck,Hasimir/epubcheck,looknear/epubcheck,mihailim/epubcheck,w3c/epubcheck,IDPF/epubcheck,IDPF/epubcheck,francisco-sanchez-molina/epubcheck,mihailim/epubcheck,e10/epubcheck,ztalker/epubcheck,looknear/epubcheck,MinFu/epubcheck,WSchindler/epubcheck,Hasimir/epubcheck,vengattech/epubcheck,WSchindler/epubcheck,vengattech/epubcheck,WSchindler/epubcheck,mihailim/epubcheck,MinFu/epubcheck,karthikeyansam/epubcheck,e10/epubcheck,MinFu/epubcheck,mihailim/epubcheck,IDPF/epubcheck,Cuadratin/epubcheck,francisco-sanchez-molina/epubcheck,WSchindler/epubcheck,ztalker/epubcheck,ztalker/epubcheck,looknear/epubcheck,MinFu/epubcheck,francisco-sanchez-molina/epubcheck,mihailim/epubcheck,IDPF/epubcheck,francisco-sanchez-molina/epubcheck,vengattech/epubcheck,WSchindler/epubcheck,vengattech/epubcheck,ztalker/epubcheck,w3c/epubcheck,looknear/epubcheck