* Upgrade Rust to 1.52.0
update nightly_version to newly pushed docker image
fix clippy lint errors
1.52 comes with grcov 0.8.0, include this version to script
* upgrade to Rust 1.52.1
* disabling Serum from downstream projects until it is upgraded to Rust 1.52.1
* feat: introduce get_inflation_reward rpc call
* fix: style suggestions
* fix: more style changes and match how other rpc functions are defined
* feat: get reward for a single epoch
* feat: default to the most recent epoch
* fix: don't factor out get_confirmed_block
* style: introduce from impl for RpcEncodingConfigWrapper
* style: bring commitment into variable
* feat: support multiple pubkeys for get_inflation_reward
* feat: add get_inflation_reward to rpc client
* feat: return rewards in order
* fix: rename pubkeys to addresses
* docs: introduce jsonrpc docs for get_inflation_reward
* style: early return in map (not sure which is more idiomatic)
* fix: call the rpc client function args addresses as well
* fix: style
* fix: filter out only addresses we care about
* style: make this more idiomatic
* fix: change rpc client epoch to optional and include some docs edits
* feat: filter out rent rewards in get_inflation_reward
* feat: add option epoch config param to get_inflation_reward
* feat: rpc client get_inflation_reward takes epoch instead of config and some filter staking and voting rewards
* Update blockstore method to allow return of unfinalized signature
* Support confirmed sigs in getConfirmedSignaturesForAddress2
* Add deprecated comments
* Update docs
* Enable confirmed transaction-history in cli
* Return real confirmation_status; fill in not-yet-finalized block time if possible
* Add rpc_client api for getRecentPerformanceSamples
* Prep fn for variable avg slot time
* Use recent-perf-samples to more-accurately estimate epoch completed times
* Spell out average
* Deprecate commitment variants
* Add new CommitmentConfig builders
* Add helpers to avoid allowing deprecated variants
* Remove deprecated transaction-status code
* Include new commitment variants in runtime commitment; allow deprecated as long as old variants persist
* Remove deprecated banks code
* Remove deprecated variants in core; allow deprecated in rpc/rpc-subscriptions for now
* Heavier hand with rpc/rpc-subscription commitment
* Remove deprecated variants from local-cluster
* Remove deprecated variants from various tools
* Remove deprecated variants from validator
* Update docs
* Remove deprecated client code
* Add new variants to cli; remove deprecated variants as possible
* Don't send new commitment variants to old clusters
* Retain deprecated method in test_validator_saves_tower
* Fix clippy matches! suggestion for BPF solana-sdk legacy compile test
* Refactor node version check to handle commitment variants and transaction encoding
* Hide deprecated variants from cli help
* Add cli App comments
* Init cli RpcClient with chosen commitment; default to single_gossip
* Fill in missing client methods
* Cli tests: make RpcClient commitment specific
* Simply rpc_client calls, using configured commitment
* Check validator vote account with single-gossip commitment
* Add optimistically_confirmed field to TransactionStatus
* Update docs
* Convert new field to confirmation_status
* Update docs to confirmationStatus
* Update variants
* Update docs
* Just Confirmed
* Check program account before attempting to create it
* Use last_valid_slot to timeout status checks
* Include transaction history in RpcClient::get_signature_statuses requests
* Improve solana-deploy send-transactions
* Clippy
* Improve mock deploy test
* Review comments
