v0.2.0

Release notes:

Major Changes:

• add Ethereum Classic (core-geth) support to nodevin! (17ad0ed)

Start an Ethereum Classic node by running nodevin start ethereum-classic

Minor Changes:

• fix delete <network> --testnet incorrectly deleting mainnet data instead of testnet data (e7ed5d4)
• fix request command silently discarding the RPC response instead of printing it (6a4980c)
• fix --data-dir not expanding a leading ~ to the home directory (7ca23d9)
• update stale documentation across README and docs/ (f729d6c)

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Commits included in this release: v0.1.2...v0.2.0