v0.6.0 - Feature Release: Constantinople Support

Parameter support for the Constantinople hardfork (see hardforks/constantinople.json):

• Added SSTORE gas/refund prices (EIP-1283), PR #27
• Added Block Reward Adjustment (EIP-1234), PR #26

v0.5.0 - Feature Release: Private Chain Support

• Introduces support for private chains by allowing to pass a custom dictionary as the chain parameter
  in the constructor or the setChain() method as an alternative to just passing one of the predefined
  chain String names (e.g. mainnet, ropsten), PR #24

v0.4.1 - Minor Feature Release

• Added timestamp field to genesis definitions in chain files, set for Rinkeby and null for other chains, PR #21
• Updated Ropsten bootstrap nodes, PR #20

v0.4.0 - Consistency Release

[0.4.0] - 2018-06-20

• Remove leftover ...Gas postfix for some gas prices (e.g. ecAddGas -> ecAdd) to
  be consistent with overall gas price naming

v0.3.1 - Feature Release

• Added two alias functions activeOnBlock() and gteHardfork() when hardfork is set for convenience, PR #15
• Added option to dynamically choose genesis state (see README), PR #15

v0.3.0 - Feature Release

• Allow functions like hardforkIsActiveOnBlock() - where hardfork is provided as param - also to be run on hardfork set for greater flexibility/comfort, PR #13
• New hardforkGteHardfork() method for HF order comparisons, PR #13

v0.2.0 - Feature Release

• New optional initialization parameter allowedHardforks, this allows for cleaner client
  library implementations by preventing undefined behaviour, PR #10
• Added activeHardfork() function to get latest active HF for chain or block, PR #11

v0.1.1 - Bugfix Release

• Remove dynamic require to prevent browserify issue, PR #8

v0.1.0 - Initial Release

Initial version, this library succeeds the ethereum/common
library, being more future-proof through a better structured design

Features:

• Easy chain-/HF-based parameter access
• No parameter changes on library updates (c.param('gasPrices', 'ecAddGas', 'byzantium') will always return the same value)
• Ease experimentation/research by allowing to include future HF parameters (already included as draft: constantinople and hybridCasper) without breaking current installations
• Improved structure for parameter access (mainly through topics like gasPrices, pow, sharding) for better readability/developer overview
• See README and API Docs for a more in-depth feature overview and usage instructions