a bug fix for psi statistics related model pickle
a bug fix for psi statistics related model pickle

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