Add a mega.nz remote #163

Not supported yet:
  * Hash
  * ModTime
  * Server Side Copy

Otherwise fully functional and passing all the tests.

backend/mega/mega_test.go

@@ -0,0 +1,17 @@
+// Test Mega filesystem interface
+package mega_test
+
+import (
+	"testing"
+
+	"github.com/ncw/rclone/backend/mega"
+	"github.com/ncw/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests against the remote
+func TestIntegration(t *testing.T) {
+	fstests.Run(t, &fstests.Opt{
+		RemoteName: "TestMega:",
+		NilObject:  (*mega.Object)(nil),
+	})
+}