0.2.0

Added

• Dynamic liquidation branch to the loan protocol:
  • New async fn dynamic_liquidation_transaction() API on Lender1.
    It takes a message of the form price:timestamp and an oracle's signature on the hash of the message, so that a lender can unilaterally liquidate the loan if the price falls below a threshold and the timestamp is past a certain time.
  • Lender0 constructor now requires blinding key of lender address and an oracle public key.

Changed

• loan::LoanResponse fields:
  • Made timelock private, but accessible via LoanResponse::collateral_contract(&self).timelock().
  • Made transaction private, accessible via getter.
  • Made collateral_amount private, but accessible via getter.
• loan::Borrower1 fields:
  • Made loan_transaction private, but accessible via getter.
  • Made collateral_amount private, but accessible via getter.
• loan::Lender1 fields:
  • Made timelock private, but accessible via getter.
• fn liquidation_transaction() API on Lender1 is now async.
• Model the collateral contract's timelock as a u32.

Fixed

• Squashed an elusive bug preventing users from building version 0.1.0 of this library.
  This required updating rust-elements to version 0.18.