v8.11.1

Contributed:

• Adjust api.{tx, query, ...} with no external side-effects (Thanks to https://github.com/btwiuse)

Changes:

• Support for state_call definitions via API config (exposed on api.call.*)
• Base type definitions for state_call from Substrate, Polkadot & Orml
• Align runtime types with latest Substrate master
• Type generation for runtime call definitions (internal & external)
• Update to latest Substrate, Polkadot & Kusama metadata