A bug in the Clopper-Pearson margin function meant that number of clusters was not being used in the calculation. This meant that it effectively always assumed a single cluster. The same was true for the function to get sample size based on the CP interval, which depended on this function. This bug is now fixed in this version.
Some plotting functions have been updated to avoid errors due to updates in the ggplot2 package. There are no changes to plots, just removing annoying messages.