Bitfinex-api-py

-) Added missing ID to ledgers.py

-) Implemented Liquidations endpoint (REST)

-) Use private host for auth-based requests

-) Added User Settings Write/Read/Delete endpoints (REST)
-) Added Balance Available for Orders/Offers endpoint (REST)
-) Fixed trades error handling (WS)

- Implemented Movement endpoints (REST)
- Fixed unawaited stop
- Changed account's trade execution (te) and trade update (tu) handling

- added ws full orderbook example