v0.2.0

Improve snapshotting behavior for Serum OpenOrders account.

This now uses multiple getMultipleAccounts requests instead of a single getProgramAccounts request, which finishes more quickly and puts far less load on the RPC node.

This requires two new configuration settings: parallel_rpc_requests and get_multiple_accounts_count. See example-config.toml.
Use jemalloc, improving long-term memory footprint

v0.1.0

Initial release.