add .checkstyle to .gitignore
add .checkstyle to .gitignore

bfitzpat/switchyard,tadayosi/switchyard,jboss-switchyard/switchyard,igarashitm/switchyard,jboss-switchyard/switchyard,tadayosi/switchyard,igarashitm/switchyard,bfitzpat/switchyard,tadayosi/switchyard,igarashitm/switchyard,cunningt/switchyard,cunningt/switchyard,igarashitm/switchyard,bfitzpat/switchyard,jboss-switchyard/switchyard,cunningt/switchyard