add __init__.py to mcmc
add __init__.py to mcmc

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