checkstyle: add cleanliness rules
checkstyle: add cleanliness rules

alescdb/connectbot,nixomose/connectbot,alescdb/connectbot,khorimoto/connectbot,zeldin/connectbot,Lekensteyn/connectbot,FauxFaux/connectbot,zeldin/connectbot,nemobis/connectbot,Shedings/connectbot,rhansby/connectbot,galexander1/connectbot,ipmobiletech/connectbot,nixomose/connectbot,redshodan/connectbot,alescdb/connectbot,windowhero0/connectbot,brunodles/connectbot,Potass/ConnectBot,iiordanov/BSSH,Lekensteyn/connectbot,connectbot/connectbot,changjiashuai/connectbot,changjiashuai/connectbot,galexander1/connectbot,connectbot/connectbot,FauxFaux/connectbot,rhansby/connectbot,kruton/connectbot,lotan/connectbot,zeldin/connectbot,changjiashuai/connectbot,Shedings/connectbot,trygveaa/connectbot,FauxFaux/connectbot,iiordanov/BSSH,jklein24/connectbot,rhansby/connectbot,nemobis/connectbot,ipmobiletech/connectbot,windowhero0/connectbot,Shedings/connectbot,redshodan/connectbot,Lekensteyn/connectbot,ipmobiletech/connectbot,jklein24/connectbot,brunodles/connectbot,kruton/connectbot,Potass/ConnectBot,lotan/connectbot,zeldin/connectbot,Lekensteyn/connectbot,galexander1/connectbot,lotan/connectbot,nemobis/connectbot,trygveaa/connectbot,windowhero0/connectbot,ipmobiletech/connectbot,Potass/ConnectBot,iiordanov/BSSH,nixomose/connectbot,brunodles/connectbot,trygveaa/connectbot,khorimoto/connectbot,kruton/connectbot,jklein24/connectbot,khorimoto/connectbot,connectbot/connectbot,redshodan/connectbot