Add: Interface names should have a capital I prefix.

* add OwnableCautious with associated mock and tests

* extraneous comma removal and cleanup

* remove non-documentation changes from branch

Change URLs to openzeppelin.com

Update URLs and names to OpenZeppelin and OpenZeppelin Contracts

Update URL to openzeppelin.com

* update readme with new branding

* update readme text with new branding and links

* add newer link to api stability document

Squashed commit of the following:

commit fcf35eb806100de300bd9803ce3150dde1ecc424
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 17 17:16:04 2019 -0300

    remove all docsite dependency

commit eeaee9a9d43d70704f6ab17b5126ddbd52b93a50
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 17 17:15:23 2019 -0300

    update solidity-docgen

commit f021ff951829ea0c155186749819403c6b76e803
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 17 17:05:06 2019 -0300

    update docsite script for new setup

commit ff887699d381cfbbe3acf1f1c0de8e22b58480f3
Merge: c938aa1d 84f85a41
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 17 16:46:46 2019 -0300

    Merge branch 'master' into antora

commit c938aa1d9ed05ac83a34e2cebd8353f8331ad6d6
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jul 16 18:24:29 2019 -0300

    make component name shorter

commit 5bbd6931e02cbbd8864c82655ad0f390ceead5f3
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 20:16:17 2019 -0300

    add all info to docs templates

commit 39682c4515d7cf0f0368ed557f50d2709174208a
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 20:13:49 2019 -0300

    fix npm docsite script

commit 7ae46bd4a0437abf66150d54d05adf46e3de2cab
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 18:48:05 2019 -0300

    convert inline docs to asciidoc

commit cfdfd3dee4b4bf582fde22c8cb6e17a603d6e0c8
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 17:34:52 2019 -0300

    add missing contract names in readmes

commit 15b6a2f9bfb546cf1d3bf4f104278b118bf1b3f4
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 17:16:47 2019 -0300

    fix script path

commit 80d82b909f9460d1450d401f00b3f309da506b29
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 17:13:53 2019 -0300

    update version of solidity-docgen

commit a870b6c607b9c2d0012f8a60a4ed1a1c8b7e8ebd
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 17:03:53 2019 -0300

    add nav generation of api ref

commit 069cff4a25b83752650b54b86d85608c2f547e5e
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Wed Jul 10 16:32:14 2019 -0300

    initial migration to asciidoc and new docgen version

commit 55216eed0a6551da913c8d1da4b2a0d0d3faa1a8
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 20:39:35 2019 -0300

    add basic api doc example

commit 0cbe50ce2173b6d1d9a698329d91220f58822a53
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 19:31:31 2019 -0300

    add sidebars

commit 256fc942845307258ac9dc25aace48117fa10f79
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 15:22:38 2019 -0300

    add page titles

commit f4d0effa70e1fc0662729863e8ee72a8821bc458
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 15:19:41 2019 -0300

    add contracts index file

commit b73b06359979f7d933df7f2b283c50cb1c31b2a0
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 15:14:52 2019 -0300

    fix header levels

commit fb57d9b820f09a1b7c04eed1a205be0e45866cac
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 15:11:47 2019 -0300

    switch format to preferred asciidoctor format

commit 032181d8804137332c71534753929d080a31a71f
Author: Francisco Giordano <frangio.1@gmail.com>
Date:   Tue Jun 25 15:05:38 2019 -0300

    initialize antora component and convert docs to asciidoc

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.11 to 4.17.14.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.11...4.17.14)

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

Correct typo: 
2 * 0.5e18 = 10^18 = 1e18

Change reference to Tokens documentation
Fix typo `CROWDALE_ADDRESS` to `CROWDSALE_ADDRESS`

Resolve compilation errors in sample contracts:
* Change `address wallet` to `address payable wallet` in multiple sample contracts
* Change `ERC20 token` to `IERC20 token` in multiple sample contracts
* Reorder inheritance of crowdsales to prevent error: "Linearization of inheritance graph impossible" in multiple sample contracts
* Change `startTime` to constructor parameter `openingTime`

Bumps [lodash.merge](https://github.com/lodash/lodash) from 4.6.1 to 4.6.2.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/commits)

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

Fix typo

fixes #1814

* Using extcodehash instead of extcodesize for less gas

`extcodehash` uses less gas then `extcodesize`. You can tell which address is a contract by the hash (see EIP-1052).

* Fix

* Add explainer

* Update Address.sol

* add changelog entry

* changed exxpect to expect wherever applicable

* Merged with latest branch

* Updated merkleTree helper to latest master branch

* Made linting fixes

* Fix for test build

* updated for Coverage

* Updated Address.test.js

* Undo package-lock changes.

* Improved tokens guide, add ERC777.

* Fix typo.

* Add release schedule and api stability.

* Add erc20 supply guide.

* Revamp get started

* Add Solidity version to examples

* Update access control guide.

* Add small disclaimer to blog guides

* Update tokens guide.

* Update docs/access-control.md

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

* Update docs/access-control.md

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

* Update docs/access-control.md

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

* Apply suggestions from code review

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

* Apply suggestions from code review

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

* Documentation: Typos and add npm init -y to setup instructions (#1793)

* Fix typos in GameItem ERC721 sample contract

* Add npm init -y to create package.json

* Address review comments.

Fixing typo in comment line 9

* 20x performance for merkle tree lib

* add semicolon

* Update test/helpers/merkleTree.js

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

* Simplification and optimization of existing contracts #8888

* Simplification of SimpleToken

* This is the fixed Simplification

* My bad I'm playing around with this git stuff, should be correct now

* add missing parenthesis

* Updated code style to no more than120 characters per line.

* Unify code comments style with Doxygen-style tags.

* Fix the conflicts.

* Add a return value in the contract ERC20Burnable.

* A Add a wrapper function to change type of address to address payable.

* U Modify Address utils.

* A Add test case for Address.

* U Modify code style in ERC20Burnable.

* Add changelog entry.

* Improved dev docs.

* Upgrade solhint to 2.1.0

* Use compiler-version ^0.5.0

Bumps [extend](https://github.com/justmoon/node-extend) from 3.0.1 to 3.0.2. **This update includes security fixes.**
- [Release notes](https://github.com/justmoon/node-extend/releases)
- [Changelog](https://github.com/justmoon/node-extend/blob/master/CHANGELOG.md)
- [Commits](https://github.com/justmoon/node-extend/compare/v3.0.1...v3.0.2)

* Create GUIDELINES.md from wiki content.

* Remove ARCHITECTURE.md

* Feature Issue #1745

* Feature Issue #1745 remove whitespace in contract

* Feature Issue #1745 fix Solidity linter issues

* Feature Issue #1745 fix JS lint issues

* Update contracts/drafts/Strings.sol

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

* Update contracts/drafts/Strings.sol

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

* Update contracts/drafts/Strings.sol

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

* Updates based on PR feedback

* Remove trailing whitespace

* Update tests based on @nventuro feedback

* Removed return name

* Rename length as suggested

* Rename temp variables in uint256ToString

* Renamed bytes variable to buffer

* Change concatenate to use abi.encodePacked

* Moved OraclizeAPI reference to unit256ToString

* Add emoji concat test

* Remove concatenate

* Remove concatenate from StringsMock and test

* Rename function to fromUint256

* Update StringsMock.sol