added: heatmap, abundance below some phylo label
added: heatmap, abundance below some phylo label

also added phylo_levels_above(), phylo_levels_below()

dacb/elvizCluster,dacb/elvizCluster,JanetMatsen/elvizAnalysis,JanetMatsen/elvizAnalysis,dacb/elvizCluster,JanetMatsen/elvizAnalysis