added parameters max_nb_eval_optim in regression examples
added parameters max_nb_eval_optim in regression examples

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