Results 3 issues of Walter Dempsey

Make it an option in fit_binomial and fit_poisson that allows you to fit our models with and without rebalancing and weather.

We see that the numbers are not great for one hour. This may be due to rebalancing. Check whether we are off by +- 10 bikes due to rebalancing or...

Provide additional understanding of convergence and whether increasing # of chains helps.