Update to DDSketch 0.1.3 which fixes an issue mapping quantiles to rank.
Updates Summary to return the min and max values when a request for the 0.0 or 1.0 quantile is made. This is convenient as described in 5274708.
Resolves an issue with quantile mapping in Summary::quantile(), where the Summary could previously return the value that belongs to the adjacent rank. Also resolves incorrect assertions in a test, that now pass with the changes to quantile mapping.
This PR includes the following: