Expose intl-messageformat option ignoreTag

[superafroman]

With the latest release and move to the latest intl-messageformat messages that include variables and HTML tags have started to throw errors.

This PR exposes the new option ignoreTag and defaults it to true for backwards compatibility.

See issue #120

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• Ideally, include a test that fails without this PR but passes with it. PRs will only be merged once they pass CI. (Remember to npm run lint!)

Tests

• Run the tests tests with npm test or yarn test

[superafroman]

Build seems to be failing because it's ignoring the .eslintrc config. Locally linting passes with no errors.

[kaisermann]

Hey @superafroman 👋 Thanks! Nice 🎉 Released in v3.3.2