Update maven-gpg-plugin to 1.6, issue #644
Update maven-gpg-plugin to 1.6, issue #644

checkstyle/checkstyle,autermann/checkstyle,nikhilgupta23/checkstyle,rnveach/checkstyle,ilanKeshet/checkstyle,izishared/checkstyle,gallandarakhneorg/checkstyle,ivanov-alex/checkstyle,liscju/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,romani/checkstyle,AkshitaKukreja30/checkstyle,pietern/checkstyle,MEZk/checkstyle,AkshitaKukreja30/checkstyle,vboerchers/checkstyle,sirdis/checkstyle,Godin/checkstyle,jasonchaffee/checkstyle,sharang108/checkstyle,romani/checkstyle,StetsiukRoman/checkstyle,universsky/checkstyle,sabaka/checkstyle,vboerchers/checkstyle,gallandarakhneorg/checkstyle,Godin/checkstyle,designreuse/checkstyle,romani/checkstyle,ivanov-alex/checkstyle,liscju/checkstyle,romani/checkstyle,WonderCsabo/checkstyle,cs1331/checkstyle,jochenvdv/checkstyle,pietern/checkstyle,mkordas/checkstyle,WilliamRen/checkstyle,attatrol/checkstyle,another-dave/checkstyle,MEZk/checkstyle,nikhilgupta23/checkstyle,universsky/checkstyle,mkordas/checkstyle,sirdis/checkstyle,gallandarakhneorg/checkstyle,sharang108/checkstyle,rnveach/checkstyle,mkordas/checkstyle,philwebb/checkstyle,beckerhd/checkstyle,attatrol/checkstyle,bansalayush/checkstyle,checkstyle/checkstyle,another-dave/checkstyle,HubSpot/checkstyle,zofuthan/checkstyle-1,rnveach/checkstyle,rmswimkktt/checkstyle,zofuthan/checkstyle-1,romani/checkstyle,llocc/checkstyle,autermann/checkstyle,checkstyle/checkstyle,romani/checkstyle,llocc/checkstyle,pietern/checkstyle,MEZk/checkstyle,WonderCsabo/checkstyle,rmswimkktt/checkstyle,philwebb/checkstyle,HubSpot/checkstyle,attatrol/checkstyle,WilliamRen/checkstyle,beckerhd/checkstyle,jonmbake/checkstyle,FeodorFitsner/checkstyle,rnveach/checkstyle,sirdis/checkstyle,another-dave/checkstyle,cs1331/checkstyle,baratali/checkstyle,HubSpot/checkstyle,designreuse/checkstyle,StetsiukRoman/checkstyle,bansalayush/checkstyle,jochenvdv/checkstyle,AkshitaKukreja30/checkstyle,nikhilgupta23/checkstyle,sabaka/checkstyle,jochenvdv/checkstyle,rnveach/checkstyle,bansalayush/checkstyle,naver/checkstyle,vboerchers/checkstyle,checkstyle/checkstyle,jonmbake/checkstyle,naver/checkstyle,WonderCsabo/checkstyle,autermann/checkstyle,baratali/checkstyle,ilanKeshet/checkstyle,WilliamRen/checkstyle,StetsiukRoman/checkstyle,naver/checkstyle,baratali/checkstyle,izishared/checkstyle,universsky/checkstyle,ivanov-alex/checkstyle,jasonchaffee/checkstyle,beckerhd/checkstyle,Bhavik3/checkstyle,jasonchaffee/checkstyle,rmswimkktt/checkstyle,cs1331/checkstyle,FeodorFitsner/checkstyle,jonmbake/checkstyle,llocc/checkstyle,zofuthan/checkstyle-1,rnveach/checkstyle,Bhavik3/checkstyle,liscju/checkstyle,ilanKeshet/checkstyle,Godin/checkstyle,designreuse/checkstyle,philwebb/checkstyle,FeodorFitsner/checkstyle,sabaka/checkstyle,izishared/checkstyle,Bhavik3/checkstyle,sharang108/checkstyle