2.3.0

* switch to using Context internally

* add context import

* Add smoke test to make sure enabling GSN support works

* Update test/GSN/ERC721GSNRecipientMock.test.js

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

* Upgrade truffle

* add missing awaits

* Revert "Upgrade truffle"

This reverts commit f9b0ba9019650fdbf8919a33e6fba834689e6b04.

* GSN support

Add base Context contract

Add GSNContext and tests

Add RelayHub deployment to tests

Add RelayProvider integration, complete GSNContext tests

Switch dependency to openzeppelin-gsn-provider

Add default txfee to provider

Add basic signing recipient

Sign more values

Add comment clarifying RelayHub's msg.data

Make context constructors internal

Rename SigningRecipient to GSNRecipientSignedData

Add ERC20Charge recipients

Harcode RelayHub address into GSNContext

Fix Solidity linter errors

Run server from binary, use gsn-helpers to fund it

Migrate to published @openzeppelin/gsn-helpers

Silence false-positive compiler warning

Use GSN helper assertions

Rename meta-tx to gsn, take out of drafts

Merge ERC20 charge recipients into a single one

Rename GSNRecipients to Bouncers

Add GSNBouncerUtils to decouple the bouncers from GSNRecipient

Add _upgradeRelayHub

Store RelayHub address using unstructored storage

Add IRelayHub

Add _withdrawDeposits to GSNRecipient

Add relayHub version to recipient

Make _acceptRelayedCall and _declineRelayedCall easier to use

Rename GSNBouncerUtils to GSNBouncerBase, make it IRelayRecipient

Improve GSNBouncerBase, make pre and post sender-protected and optional

Fix GSNBouncerERC20Fee, add tests

Add missing GSNBouncerSignature test

Override transferFrom in __unstable__ERC20PrimaryAdmin

Rhub address slot reduced by 1

Rename relay hub changed event

Use released gsn-provider

* move gsn to all caps

* update to gsn contracts in solidity/master

* Adapt for ethereum-package

* update gsn related packages

* update dependencies to match contracts repo

* remove mocha bail option

* add changelog entry

* add constructors to mocks

* use unstructured storage for bouncer implementations

* Release 2.2.1

* Use caret for peer dependency

* Change import path from zos-lib to upgrades in all contracts

* Update readme with new naming

* Update package and deps names

* Change path to initializable in AST of networks.jsons

* Migrate manifest version

* Use new oz file locations

* Rename in ERC20Migrator comments

* Update SDK install instructions in README

* Update gitignore to use new session file name

* trigger CI

* Fixes to readme and package version

* Use 2.5.0 release of OpenZeppelin SDK

Documentation: update README links

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

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.0.12 to 4.1.2.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/master/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.1.2)

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.6.1 to 3.13.1.
- [Release notes](https://github.com/nodeca/js-yaml/releases)
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/compare/3.6.1...3.13.1)

v2.2.0

(cherry picked from commit bd13be91)

Squashed commit of the following:

commit 06243c3e8e86074ff8e9e3f22b7829a2c315d707
Merge: 991882ec 99373558
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 18:15:37 2019 -0300

    Merge branch 'api-docs' into api-docs-merge

commit 991882eca5bb8a3391995154bfb9d53d8a69cb4f
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 18:08:02 2019 -0300

    manually apply docs changes and renamings

commit fa1f6e97dd67a76c3cd828d0a5e19b4ac6c37acb
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 17:36:03 2019 -0300

    move functions to new order

commit 99373558e3af4905d29bc6f3f542ba93d28a24ab
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 16:23:40 2019 -0300

    add missing docs links

commit d180d6c36a6f5460e85473ee5a18992d1449a6ff
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 16:14:12 2019 -0300

    update solidity-docgen dependency

    fixes uri encoded links

commit faab0e50da91cd2f0a409e3ad32e2db127ad319a
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 16:05:03 2019 -0300

    update openzeppelin-docsite and solidity-docgen dependencies

    add visibility specifiers

commit ef305268bb2735e488e35d16819a4b432b3a35e3
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 23 15:36:45 2019 -0300

    Fix guide links.

commit 339b20dbfa2d5f6ea02e63c2f3fdcba0fe879c3c
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 23 13:37:51 2019 -0300

    Fix typos.

commit 6c7b97460578b9eea90b53c280454e361f8f0052
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 15:26:29 2019 -0300

    fix utilities guide links

commit 0e7692a8fd8516a11becc4121d77d792439600b1
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 15:23:19 2019 -0300

    update solidity-docgen dependency

commit ebb8a8651516ece21736c6c3b2577eb1b3487651
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 15:15:01 2019 -0300

    fix utilities guide links

commit 5ec47d62785e1d6e5f8e91edca58f2dc7f87d7a3
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 15:14:49 2019 -0300

    fix escrow docs ordering

commit cdcdc909b16f219a9a3272036b6a8f21e34b48ef
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 13:35:07 2019 -0300

    add wip notice

commit 987e2951ae93211c8c70c8288e30573555c57830
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 13:09:35 2019 -0300

    update openzeppelin-docsite dependency

    fixes links to old versions

commit b00d22c0affac2e2108df8b773dfa1706afcb44e
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 23 13:09:28 2019 -0300

    fix guide links

commit f112a9400c5e5ad495c8e0fdb972e26987b34244
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 20:42:37 2019 -0300

    update docsite

commit 68aacdd56a29e35a84f6732f9293612bbcaf7520
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Wed May 22 20:00:39 2019 -0300

    ERC20Capped

commit 4edce78bab2c6d140f3ea3f33db71e92ca4d8aaf
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Wed May 22 19:52:30 2019 -0300

    Unnecessary polish on token docs.

commit 2a4c91cf49c2736dc09c1c03cf383911def1a1b2
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 19:20:05 2019 -0300

    rename guides

commit 61dd818ea76d4c170c4ab175c6be0d6067d21a29
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Wed May 22 17:04:09 2019 -0300

    ERC1820 docs.

commit 77b5f0353123b76358dc6d86bdc646c86c9b0bea
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Wed May 22 16:17:34 2019 -0300

    Introspection and ERC165.

commit 76641a253b3b70279802c5134dd107532eea4b2c
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 17:59:53 2019 -0300

    update docgen

commit 7be98bc3fbd3566231f943f01b9acb58567d755b
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 17:23:50 2019 -0300

    update solidity-docgen

commit f7268e6e010f8ef9ac83df241a803f91efc08c0c
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 16:58:31 2019 -0300

    update docgen

commit 2a8c7a378e8962a5baeb334b2492815f05075f98
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Wed May 22 14:36:35 2019 -0300

    Util docs.

commit 327ae8ff45a1a523c7591bf4996c4a9b52d7ec7a
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 13:08:50 2019 -0300

    add missing drafts

commit 5e7f71335ac8423c0e363ae8c7ad9b2977f202f8
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 12:47:41 2019 -0300

    tweak ierc20 docs

commit cd0e86a0b712f74ffd406e072d4b1fbf4dd2c176
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 12:46:45 2019 -0300

    add some erc721 docs

commit e081184159417f71da14bc0fc110b7b11e29d75d
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 12:41:46 2019 -0300

    update docsite

commit 0beb75784022419d47123c2a9fe7a5f1eb87f9b2
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 12:22:27 2019 -0300

    correct drafts structure

commit 2e94b287c7cead7a6c0603205670566461c31abb
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 11:56:25 2019 -0300

    fix docsite-start script

commit 0fa4160484309d0851584fe57c0d81a3600977db
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 11:47:44 2019 -0300

    improve docsite start script (automatically watch docgen)

commit 9d571897cc03bee92035964cf7a2cfeda1e2f690
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 22 11:30:37 2019 -0300

    update solidity-docgen

commit 82980f5aefbdfb8a9815a3b7b0e88e970b65dd5d
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue May 21 19:15:13 2019 -0300

    edit docs for Secondary

commit 00d7a005b0530bee730b77a1b69a95f1b4ffe315
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue May 21 19:15:13 2019 -0300

    edit docs for ownable

commit b0c4c2bdf83eca5d4a71792daac603236733d46e
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue May 21 18:27:13 2019 -0300

    change title of Math section

commit deb788583f191780e55b7f673520eaf13a5c7e23
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue May 21 18:26:59 2019 -0300

    capitalization

commit f2bcf85d343ea4a0739fe22a77b1e22c2296ddea
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue May 21 18:26:06 2019 -0300

    edit docs for Pausable

commit 73ba0cf43dbb44c39c1bf2ee63ef9fe558faa919
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Sat May 18 19:08:06 2019 -0300

    Crypto docs.

commit 9d6fc6223f51cf2321b2e3217c512579654c3917
Merge: 7e21f8f7 9f1cec12
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Fri May 17 17:23:15 2019 -0300

    Merge branch 'api-docs-777' into api-docs

commit 9f1cec12e3351fb1b5fc0b59f5ded39928064a56
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Fri May 17 17:22:54 2019 -0300

    ERC777 done.

commit 7e21f8f7b6982d2f92df302cdf6ec62522d8ffff
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Fri May 17 16:39:47 2019 -0300

    add math docs

commit f18d1f17023b6e5b42ae04fc38aa1170e6863864
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 16 20:01:46 2019 -0300

    First draft of ERC777 docs.

commit 985c5d305329fd9d400120d86dce5c386e19cd50
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 16 19:14:32 2019 -0300

    Final draft for IERC777.

commit bf53f133d987b67f938a329e6d659ba3483aab0b
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 16 19:13:37 2019 -0300

    more work on ERC20 api docs

commit b7c250b7cb4669448cfab5535c4ff70b94a15635
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 16 17:08:47 2019 -0300

    Fix typo.

commit 197bbfbfc67a09607ead492b834879c62b3d905a
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 16 17:05:14 2019 -0300

    Initial draft of IERC777.

commit 7dc3b55161c860437a8f13a2ce5808b1c3dd70a2
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Thu May 16 11:58:32 2019 -0300

    add payment docs structure

commit da16fc4480243181e58c3440e977e76a91a1839a
Author: Nicolás Venturo <nicolas.venturo@gmail.com>
Date:   Thu May 16 16:05:33 2019 -0300

    Initial ERC777 docstrings.

commit 9f6a7e35bd2f045e6063ca2f93c67b792c0ef47c
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed May 15 22:13:17 2019 -0300

    partial pass through ERC20 docs

(cherry picked from commit 2f9ae975)

* update truffle to include bugfix

* change prepack script to prepare

* add npx in compile script

* fix for older node

* rename script file to prepare

(cherry picked from commit 036dd9bd)

(cherry picked from commit dd6ec219)

* improve prepack script

* remove .npmignore

* make prepack use pkg.files

* fix linter errors

(cherry picked from commit cc19ccfd)

(cherry picked from commit fa004a7f)