Wes Rice

Closes #535

When setting a default of `ignoreUrl: true`, the `pa11y()` function shouldn't require a url parameter

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## Expected behaviour 1) `options.page` exists, but there is no default `pa11y.default.page` is not defined. This is not a huge deal, it's just a little confusing, as `pa11y.default.browser` is defined...

Upgrade `lodash` and `svg-sprite-data` to patch vulnerability

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This PR updates the `lodash` and `svg-sprite-data` dependency versions to patch the vulnerability found below. I also went ahead and ignored some common Yarn and NPM files. This PR assumes...

Add ability to define which directory to deploy to

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There are situations where one might want to deploy to a different directory other than `public`. This pull request keeps the current behavior as the default while allowing more control...