Fixed issue with adagrad and scale parameter
Fixed issue with adagrad and scale parameter

Abasyoni/dynet,cherryc/dynet,mitchellstern/dynet,mitchellstern/dynet,Peilun-Li/dynet,kamigaito/cnn,cherryc/dynet,Abasyoni/dynet,dhgarrette/cnn,cherryc/dynet,Peilun-Li/dynet,dhgarrette/cnn,Abasyoni/dynet,dhgarrette/cnn,yoavg/cnn,kamigaito/cnn,yoavg/cnn,Peilun-Li/dynet