densityClust 0.3.3

• Upkeep
• Move from Rcpp to cpp11

densityClust 0.3.0

This version brings with it huge potential speedups when dealing with large datasets thanks to a new k-Nearest Neighbors algorithm that circumvent the need for calculating the full distance matrix prior to clustering. The new algorithm has been added courtesey Xiaojie Qiu, and will be used if a matrix or data.frame is supplied instead of a distance matrix.