Changes in version 0.1.0                        

Initial development release

  - Added mixed_distance() for custom mixed-trait dissimilarity
    calculations.
  - Added mixed_cluster() for hierarchical clustering and
    silhouette-based selection of the number of clusters.
  - Added mixed_pcoa() for Principal Coordinates Analysis.
  - Added mixed_trait() for descriptive trait-separation scores.
  - Added mixed_visualize() for dendrogram, silhouette, PCoA, and
    trait-separation plots.