Update openzeppelin-solidity to the latest version 🚀

[greenkeeper[bot]]

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☝️ Important announcement: Greenkeeper will be saying goodbye 👋 and passing the torch to Snyk on June 3rd, 2020! Find out how to migrate to Snyk and more at greenkeeper.io

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The dependency openzeppelin-solidity was updated from 2.5.0 to 3.0.0.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

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Publisher: nventuro License: MIT

Find out more about this release.

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Your Greenkeeper bot :palm_tree:

[greenkeeper[bot]]

• The dependency openzeppelin-solidity was updated from 2.5.1 to 3.0.1.

Update to this version instead 🚀

Commits

The new version differs by 16 commits.

• 087d314 3.0.1
• 6e3de4d Merge pull request #2213 from nventuro/merge-v2.5.1
• dc3f922 Bump mocha from 7.1.1 to 7.1.2 (#2216)
• 1ff8a97 add docs badge
• dd226e1 Add latest audit notice
• d0f67f9 Add changelog entry
• e156b61 Merge branch 'release-v2.5.0'
• 8378289 2.5.1
• 3843c9b Add changelog entry
• c75b016 Add missing requirements to ERC777 (#2212)
• ad290e7 Use msg.sender in docs
• 364da52 Add note about default admin role security (#2211)
• e50e496 Remove unnecessary linter ignore
• c4be4d1 ERC721 documentation (#2164)
• 6f40ed3 Fix crossreference

There are 16 commits in total.

See the full diff