Lock RSpec dependency to 2.7 until JRuby bugs releated to 2.8 get sorted out
Lock RSpec dependency to 2.7 until JRuby bugs releated to 2.8 get sorted out

celluloid/nio4r,celluloid/nio4r,tpetchel/nio4r,tpetchel/nio4r,frsyuki/nio4r,celluloid/nio4r,marshall-lee/nio4r,tpetchel/nio4r,marshall-lee/nio4r,frsyuki/nio4r,marshall-lee/nio4r,frsyuki/nio4r