Pull request ElementsProject/lightning#4563

BROKEN Pay: handle when we're close to htlc limit

6814
6815
6849
6850
6865
6866
6872

Range Diff Matrix


6814..6815
6814..6849	6815..6849
6814..6850	6815..6850	6849..6850
6814..6865	6815..6865	6849..6865	6850..6865
6814..6866	6815..6866	6849..6866	6850..6866	6865..6866
6814..6872	6815..6872	6849..6872	6850..6872	6865..6872	6866..6872