cPickle fix for Py3
cPickle fix for Py3

maaskola/GPy,mikecroucher/GPy,beckdaniel/GPy,SheffieldML/GPy,befelix/GPy,ptonner/GPy,avehtari/GPy,Dapid/GPy,jameshensman/GPy,buntyke/GPy,ptonner/GPy,beckdaniel/GPy,maaskola/GPy,mikecroucher/GPy,avehtari/GPy,PredictiveScienceLab/GPy,befelix/GPy,buntyke/GPy,dhhjx880713/GPy,SheffieldML/GPy,SheffieldML/GPy,mikecroucher/GPy,maaskola/GPy,esiivola/GPYgradients,dhhjx880713/GPy,befelix/GPy,buntyke/GPy,dhhjx880713/GPy,ptonner/GPy,Dapid/GPy,SheffieldML/GPy,PredictiveScienceLab/GPy,buntyke/GPy,esiivola/GPYgradients,ysekky/GPy,ptonner/GPy,AlexGrig/GPy,ysekky/GPy,maaskola/GPy,esiivola/GPYgradients,jameshensman/GPy,AlexGrig/GPy,avehtari/GPy,ysekky/GPy,jameshensman/GPy,Dapid/GPy,dhhjx880713/GPy,mikecroucher/GPy,ysekky/GPy,beckdaniel/GPy,Dapid/GPy,avehtari/GPy,AlexGrig/GPy,beckdaniel/GPy,befelix/GPy,esiivola/GPYgradients,jameshensman/GPy,AlexGrig/GPy,PredictiveScienceLab/GPy,PredictiveScienceLab/GPy