add ruby 2.2 to travis
add ruby 2.2 to travis

makevoid/eye,makevoid/eye,heyryanw/eye,kostya/eye,gitinsky/eye,gitinsky/eye,kostya/eye,marshall-lee/eye,heyryanw/eye,esse/eye,marshall-lee/eye,cuzic/eye,SergXIIIth/eye,cuzic/eye,SergXIIIth/eye,esse/eye