Jared McFarland

This PR bumps to underlying native SDK version to their new major versions which drop support for Decide and make `trackAutomaticEvents` a required parameter.

Likely related to: https://stackoverflow.com/questions/3348460/csv-file-written-with-python-has-blank-lines-between-each-row

Previous way of calculating the expire parameter was incorrect. No need for the MixpanelAPI.prototype._get_utc() method, we can get a UTC timestamp natively via Date.prototype.getTime(). Additionally the _get_utc() was incorrectly implemented...

The release script wasn't checking out the release branch prior to attempting to set the new snapshot version. It was was still on the docs branch gh-pages so the sed...

Fix StrictMode DiskReadViolations during SDK initialization

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## Problem SDK users are experiencing StrictMode DiskReadViolations when initializing the Mixpanel SDK on the main thread. These violations occur at three specific points during initialization, causing issues for apps...