Updated UI to include a selectInput to choose between binomial and Poisson Distribution. Added conditional panels to appear dcepending on distribution selected
Fixed missing "value" error in Poisson Conditional Panel
Added reactive plot for Poisson distribution
Removed while loop for calculating max x to show on poisson plot. (while loop wasn't terminating, not sure why). Replaced with calculate up to x=17 and then subset.

Added animation option to lambda slider