Bump ethereumjs-tx from 1.3.7 to 2.1.1

[dependabot-preview]

Bumps ethereumjs-tx from 1.3.7 to 2.1.1.

Release notes

Sourced from ethereumjs-tx's releases.

v2.1.1 - Istanbul Support (EIP-2028)

• Added support for Istanbul reduced non-zero call data gas prices (EIP-2028), PR #171

v2.1.0 - Testnet + Custom/Private Network Support

Using testnets and custom/private networks is now easier

This release is focused on making this library easier to use in chains other than mainnet.

Using standard testnets can be as easy as passing their names to the Transaction constructor. For example, new Transaction(rawTx, {chain: 'ropsten', hardfork: 'byzantium'}) is enough to use this library with Ropsten on Byzantium.

If you are using a custom network, you can take advantage of ethereumjs-common, which contains all the network parameters. In this version of ethereumjs-tx you can use its new Common.forCustomNetwork to create a Common instance based on a standard network with some parameters changed. You can see an example of how to do this [here (https://github.com/ethereumjs/ethereumjs-common/blob/9e624f86107cea904d8171524130d92c99bf9302/src/index.ts).

List of changes:

• Upgraded ethereumjs-common to ^1.3.0
• Added more documentation and examples on how to create transactions for public testnets and custom networks.

v2.0.0 - TypeScript / HF Support / EIP-155

TypeScript / Module Import / Node Support

First TypeScript based release of the library, see PR #145 for details.

This comes along with some changes on the API, Node import of the exposed classes now goes like this:

const EthereumTx = require('ethereumjs-transaction').Transaction
const FakeEthereumTx = require('ethereumjs-transaction').FakeTransaction

The library now also comes with a type declaration file distributed along with the package published.

Along with this release we drop official support for Node versions 4,5 and 6. Officially tested versions are now Node 8, 10 and 11 (see PRs #138 and #146).

Hardfork Support / Official Test Updates

Along with a long overdue update of the official Ethereum Transaction tests (see PRs #131 and #138 for FakeTransaction) and an introduction of setting chain and hardfork by using our shared ethereumjs-common class (see PR #131) the transaction library now supports all HFs up to the Petersburg hardfork, see [constructor option docs (https://github.com/ethereumjs/ethereumjs-tx/blob/master/docs/interfaces/transactionoptions.md) for information on instantiation and default values (current hardfork default: petersburg).

API Changes:

• Removal of the data.chainId parameter, use the opts.chain parameter or a custom Common instance

Default EIP-155 Support

Along with defaulting to a post-Spurious Dragon HF replay protection from EIP-155 is now activated by default. Transactions are subsequently also by default signed with EIP-155 replay protection, see PRs #153, #147 and #143.

This comes with some changes in how different v values passed on instantiation or changed on runtime are handled:

• The constructor throws if the v value is present, indicates that EIP-155 was enabled, and the chain id it indicates doesn't match the one of the internal common object
• No default v is set. If a transaction isn't signed, it would be an empty buffer
• If v is changed after construction its value is validated in its setter

... (truncated)

Changelog

Sourced from ethereumjs-tx's changelog.

2.1.1 - 2019-08-30

• Added support for Istanbul reduced non-zero call data gas prices
  (EIP-2028),
  PR #171

2.1.0 - 2019-06-28

Using testnets and custom/private networks is now easier

This release is focused on making this library easier to use in chains other than mainnet.

Using standard testnets can be as easy as passing their names to the Transaction constructor. For
example, new Transaction(rawTx, {chain: 'ropsten', hardfork: 'byzantium'}) is enough to use this
library with Ropsten on Byzantium.

If you are using a custom network, you can take advantage of ethereumjs-common,
which contains all the network parameters. In this version of ethereumjs-tx you can use its new
Common.forCustomNetwork to create a Common instance based on a standard network with some
parameters changed. You can see an example of how to do this here.

List of changes:

• Upgraded ethereumjs-common to ^1.3.0
• Added more documentation and examples on how to create transactions for public testnets and
  custom networks.

[2.0.0] - 2019-06-03

TypeScript / Module Import / Node Support

First TypeScript based release of the library, see
PR #145 for details.

This comes along with some changes on the API, Node import of the exposed
classes now goes like this:

const EthereumTx = require('ethereumjs-transaction').Transaction
const FakeEthereumTx = require('ethereumjs-transaction').FakeTransaction

The library now also comes with a type declaration file distributed along
with the package published.

Along with this release we drop official support for Node versions 4,5

... (truncated)

Commits

• f4cd11f Merge pull request #173 from ethereumjs/new-release-v211
• 8880d6b Bumped version to v2.1.1, added CHANGELOG and README entry
• ad75b65 Merge pull request #171 from ethereumjs/istanbul/eip-2028
• acce166 Merge branch 'master' into istanbul/eip-2028
• b7c782a Merge pull request #172 from ethereumjs/travis-xvfb
• 0b43165 Fix travis xvfb service
• e0fe03d Add support for EIP-2028 for Istanbul
• 9a6324f Merge pull request #168 from ethereumjs/new-release-2.1.0
• c33ff1f Add pacakge-lock.json to .gitignore
• 1f61d33 Remove package-lock.json
• Additional commits viewable in compare view

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Superseded by #426.