v0.33.4

Nodes are no longer guaranteed to contain all blocks up to the latest height. The ABCI app can now control which blocks to retain through the ABCI field ResponseCommit.retain_height, all blocks and associated data below this height will be removed.

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Special thanks to external contributors on this release:

Friendly reminder, we have a bug bounty program.

CLI/RPC/Config
Apps
P2P Protocol
Go API
- [rpc/client] #4628 Split out HTTP and local clients into http and local packages (@erikgrinaker).
- [lite2] #4616 Make maxClockDrift an option (@melekes). Verify/VerifyAdjacent/VerifyNonAdjacent now accept maxClockDrift time.Duration.

[abci] Add ResponseCommit.retain_height field, which will automatically remove blocks below this height.
[rpc] Add /status response fields for the earliest block available on the node
[rpc] #4611 Add codespace to ResultBroadcastTx (@whylee259)

[blockchain] Add Base to blockchain reactor P2P messages StatusRequest and StatusResponse
[example/kvstore] Add RetainBlocks option to control block retention
[p2p] #4548 Add ban list to address book (@cmwaters)
[privval] #4534 Add error as a return value onGetPubKey()
[Docker] #4569 Default configuration added to docker image (you can still mount your own config the same way) (@greg-szabo)
[lite2] #4562 Cache headers when using bisection (@cmwaters)
[all] #4608 Give reactors descriptive names when they're initialized
[lite2] #4575 Use bisection for within-range verification (@cmwaters)
[tools] #4615 Allow developers to use Docker to generate proto stubs, via make proto-gen-docker.
[p2p] #4621(tendermint#4621) ban peers when messages are unsolicited or too frequent (@cmwaters)
[evidence] #4632 Inbound evidence checked if already existing (@cmwaters)

[rpc] #4568 Fix panic when Subscribe is called, but HTTP client is not running (@melekes) Subscribe, Unsubscribe(All) methods return an error now.

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