added Clover reference
added Clover reference

bansalayush/checkstyle,StetsiukRoman/checkstyle,rnveach/checkstyle,ivanov-alex/checkstyle,beckerhd/checkstyle,WilliamRen/checkstyle,zofuthan/checkstyle-1,rnveach/checkstyle,sirdis/checkstyle,pietern/checkstyle,zofuthan/checkstyle-1,jasonchaffee/checkstyle,Godin/checkstyle,vboerchers/checkstyle,vboerchers/checkstyle,universsky/checkstyle,jochenvdv/checkstyle,Godin/checkstyle,jonmbake/checkstyle,nikhilgupta23/checkstyle,nikhilgupta23/checkstyle,cs1331/checkstyle,romani/checkstyle,another-dave/checkstyle,romani/checkstyle,another-dave/checkstyle,attatrol/checkstyle,cs1331/checkstyle,philwebb/checkstyle,naver/checkstyle,Bhavik3/checkstyle,romani/checkstyle,naver/checkstyle,MEZk/checkstyle,llocc/checkstyle,vboerchers/checkstyle,attatrol/checkstyle,pietern/checkstyle,nikhilgupta23/checkstyle,izishared/checkstyle,gallandarakhneorg/checkstyle,jdoyle65/checkstyle,StetsiukRoman/checkstyle,WonderCsabo/checkstyle,rnveach/checkstyle,WilliamRen/checkstyle,FeodorFitsner/checkstyle,mkordas/checkstyle,llocc/checkstyle,bansalayush/checkstyle,jochenvdv/checkstyle,attatrol/checkstyle,ivanov-alex/checkstyle,universsky/checkstyle,pietern/checkstyle,AkshitaKukreja30/checkstyle,autermann/checkstyle,jasonchaffee/checkstyle,izishared/checkstyle,ilanKeshet/checkstyle,pbaranchikov/checkstyle,another-dave/checkstyle,checkstyle/checkstyle,baratali/checkstyle,Andrew0701/checkstyle,sabaka/checkstyle,llocc/checkstyle,checkstyle/checkstyle,StetsiukRoman/checkstyle,beckerhd/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,sharang108/checkstyle,naver/checkstyle,romani/checkstyle,checkstyle/checkstyle,sirdis/checkstyle,ilanKeshet/checkstyle,MEZk/checkstyle,HubSpot/checkstyle,liscju/checkstyle,WonderCsabo/checkstyle,FeodorFitsner/checkstyle,rmswimkktt/checkstyle,AkshitaKukreja30/checkstyle,philwebb/checkstyle,sharang108/checkstyle,universsky/checkstyle,rmswimkktt/checkstyle,ivanov-alex/checkstyle,liscju/checkstyle,sabaka/checkstyle,autermann/checkstyle,gallandarakhneorg/checkstyle,designreuse/checkstyle,FeodorFitsner/checkstyle,designreuse/checkstyle,ilanKeshet/checkstyle,baratali/checkstyle,jasonchaffee/checkstyle,WilliamRen/checkstyle,WonderCsabo/checkstyle,jonmbake/checkstyle,Bhavik3/checkstyle,gallandarakhneorg/checkstyle,Bhavik3/checkstyle,sirdis/checkstyle,AkshitaKukreja30/checkstyle,designreuse/checkstyle,jochenvdv/checkstyle,sharang108/checkstyle,romani/checkstyle,rnveach/checkstyle,jdoyle65/checkstyle,sabaka/checkstyle,checkstyle/checkstyle,mkordas/checkstyle,beckerhd/checkstyle,rmswimkktt/checkstyle,cs1331/checkstyle,zofuthan/checkstyle-1,romani/checkstyle,izishared/checkstyle,pbaranchikov/checkstyle,liscju/checkstyle,jonmbake/checkstyle,HubSpot/checkstyle,bansalayush/checkstyle,Andrew0701/checkstyle,mkordas/checkstyle,MEZk/checkstyle,baratali/checkstyle,HubSpot/checkstyle,Godin/checkstyle,rnveach/checkstyle,rnveach/checkstyle,philwebb/checkstyle,autermann/checkstyle