v0.7.0-rc.7

0.7.0-rc.7 (Synonym Fork)

Synonym Fork Additions

• Added claimable_on_close_sats field to ChannelDetails struct. This field contains the
  amount (in satoshis) that would be claimable if the channel were force-closed now, computed
  from the channel monitor's ClaimableOnChannelClose balance. Returns None if no monitor
  exists yet (pre-funding). This replaces the workaround of approximating the claimable amount
  using outbound_capacity_msat + counterparty_reserve.