Automatic snapshot pre-release monthly-2021-08

Changes since last snapshot (monthly-2021-07)

Substrate changes

Runtime

• Add some important events to batch & staking to ensure ease of analysis (#9462)
• Move PalletVersion away from the crate version (#9165)
• check can_dec_provider when transfer allow death (#9411)
• include dispatch result in the Executed event (#9315)
• pallet-collective: Do not vote aye with propose (#9323)
• contracts: Allow contracts to dispatch calls into the runtime (#9276)
• Include StorageInfo in Benchmarking Pipeline (#9090)

Client

• Move client consensus parts out of primitives and into client/consensus/api (#9319)
• Do not call initialize_block before any runtime api (#8953)

API

• Add methods to PrefixIterator to support iterating from a specific key (#9313)
• Benchmarking also benchmark for decoding the call (#9343)
• Emit error when Config part is imported but without the std feature (#9225)
• Migrate pallet-mmr to the new pallet attribute macro (#9181)
• pallet-collective: Do not vote aye with propose (#9323)
• Migrate pallet-treasury to the new pallet attribute macro (#9197)
• Remove impl_outer_ macros (#9307)
• Implement InspectEnumerable for Uniques (#9117)
• Implement iter_keys function for all types of storage maps (#9238)