2.4.0

(cherry picked from commit bddbbe99)

(cherry picked from commit 2d304153)

(cherry picked from commit 9113335c)

(cherry picked from commit 76a1d7a3)

* Add withdrawWithGas

* Improve docs

* Add changelog entry

* Update contracts/payment/PullPayment.sol

Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>

* Remove repeated comment

* Update changelog entry

* Fix inline docs

* Fix changelog formatting

(cherry picked from commit d6e10ab7)

(cherry picked from commit eaee98f2)

Fixed:
-DetailedERC20 in the constructor
-minters should be _minters
-New example instead of rename function

(cherry picked from commit 5c8fa0f0)

(cherry picked from commit fcd77a4a)

(cherry picked from commit 5702a844)

* Add Address.sendEther

* Add documentation to sendEther

* Add changelog entry

* Rename sendEther to sendValue

(cherry picked from commit 8d166f3e)

* Merge GSNBouncerBase into GSNRecipient

* Remove emtpy implementations for _pre and _post

* Rename bouncers to recipients

* Rename bouncers documentation to strategies

* Rewrite guides and docstrings to use the strategy naming scheme

* Address review comments

* Apply suggestions from code review

Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>

* change wording of docs

(cherry picked from commit aae95db4)

* Improve PullPayment docs

* Reword escrow note

* Update contracts/payment/PullPayment.sol

Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
(cherry picked from commit 9e19d90c)

(cherry picked from commit 53f1b116)

(cherry picked from commit 13b85c68)

(cherry picked from commit eda29e06)

* switch index to show arg names

* add index separators

* add classes to style variable type and name

* add class for inherited part of index

* use inheritedItems in contracts template

* refactor template to use explicit if and each

(cherry picked from commit 5d6a040f)

(cherry picked from commit e557a54c)

(cherry picked from commit 77ae18f1)

(cherry picked from commit c8665228)

* fix erc20 fee token decimals to 18

* lint

* Update contracts/GSN/bouncers/GSNBouncerERC20Fee.sol

Co-Authored-By: Nicolás Venturo <nicolas.venturo@gmail.com>

* change location of hardcoded decimals for clarity

* remove mention of decimals from docs

* remove trailing whitespace from guide

(cherry picked from commit b8ccf8e0)

* GSNSignatureBoucer does not accept zero address

* Linting code.

* Update contracts/GSN/bouncers/GSNBouncerSignature.sol

Makes sense!

Co-Authored-By: Nicolás Venturo <nicolas.venturo@gmail.com>

* Update test/GSN/GSNBouncerSignature.test.js

ok!

Co-Authored-By: Nicolás Venturo <nicolas.venturo@gmail.com>

* Add zero address constant from OZ test Helpers

* revert prettier formatting

(cherry picked from commit f9a94788)

* Fix typo

* Replace pseudo code contracts with sample code

* Update GSN Bouncers text

* More text changes

* Update with latest code and remove reference to allowance

* Capitalize Custom Bouncer

* Update docs/modules/ROOT/pages/gsn-bouncers.adoc

Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>

* Update gsn-bouncers.adoc with Antora cross reference

Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>

* Revert to handling msg.sender msg.data differently

* Change by default to simplest implementation

* Change signing to include signature for GSNBouncerSignature

* Reword summary of what is in the guide

* Remove "The" from before `GSNBouncer...`

* Fix code snippet markdown

* Change to API references to xref:api

* Remove code from How it works sections

* Explain 1:1 exchange rate

* Change transaction request to relayed call

* Minor fixes

* Add info to Custom Bouncers

* Typo

* Minor fixes

* reorder sentence based on review gsn-bouncers.adoc

Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>

* Improve wording of signing of relayed call parameters by trusted signer

(cherry picked from commit 18473d01)

(cherry picked from commit 54182bf3)

* Fix bouncer signature tests

* Update GSNBouncerSignature.test.js

(cherry picked from commit 19a41980)

(cherry picked from commit 52dc14c3)

(cherry picked from commit 6148abb1)

(cherry picked from commit c8762544)

(cherry picked from commit e855ca45)

* Merge GSNContext into GSNRecipient

* Update GSNRecipient.test.js

* Update GSNRecipient.sol

* Make GSNRecipient inherit from Context

(cherry picked from commit 1efa9f62)

* Improve IRelayRecipient docs

* Fix link

* Update IRelayHub docs to the docsite format

* Update IRelayRecipient docs to the dociste format

* Fix typo

* Improve GSN readme

* Fix link

* Update GSNRecipient docs

* Apply suggestions from code review

Co-Authored-By: Andrew B Coathup <28278242+abcoathup@users.noreply.github.com>

* Apply suggestions from code review

Co-Authored-By: Andrew B Coathup <28278242+abcoathup@users.noreply.github.com>

* Apply suggestions from code review

Co-Authored-By: Andrew B Coathup <28278242+abcoathup@users.noreply.github.com>
(cherry picked from commit d8642286)

(cherry picked from commit 5274b3d8)

* Replace confirmRelayedCall with approveRelayedCall

* Update gsn-bouncers.adoc

* Update deprecated enums

(cherry picked from commit 9c733a7b)

(cherry picked from commit 4e527a20)

(cherry picked from commit 5d183d0e)