Allow to reverse taxonomy entries.

hugolib/taxonomy.go

@@ -116,6 +116,14 @@ func (ie OrderedTaxonomyEntry) Term() string {
 	return ie.Name
 }
 
+func (t OrderedTaxonomy) Reverse() OrderedTaxonomy {
+	for i, j := 0, len(t)-1; i < j; i, j = i+1, j-1 {
+		t[i], t[j] = t[j], t[i]
+	}
+
+	return t
+}
+
 /*
  * Implementation of a custom sorter for OrderedTaxonomies
  */