Fix error introduced into GP_regression when doing name changes.
Fix error introduced into GP_regression when doing name changes.

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