Add Clumper structure

handler/paste/clumper.go

@@ -0,0 +1,10 @@
+package paste
+
+import "github.com/ollien/updown/repository"
+
+// Clumper holds a number of pasters, and the associated pasters.
+// Note that the indices in Clump.Pastes are not guarenteed to match that of Pasters
+type Clumper struct {
+	Clump   repository.Clump
+	Pasters []Paster
+}