Analytix

- Fixed issue where setting the start or end date to anything other than the beginning of the month would cause a `HTTPError` if 'month' was passed as a dimension.
- Corrected some problems with the docs.

Added new factory methods to help retrieve reports easier:

- `daily_analytics`
- `monthly_analytics`
- `regional_analytics`
- `top_videos`

To find out how to use these in more detail, check the [library reference](https://analytix.readthedocs.io/en/latest/app/yt-analytics.html).

The rewrite is finally done! There are too many changes to mention them all here, but there is a [migration guide](https://analytix.readthedocs.io/en/latest/info/migrating.html) to help you switch your project(s) from version 1 to version 2.

This should be the final dev release before 2.0.0 stable (in fact, there may be no changes between now and then). This update mainly focussed on docs.

This will likely be the last major update before documentation in dev7.

**Changes**
- Added playlist report types
- Fixed broken report types
- Made the verifier more robust
- Made the verifier check sort options in the same way as metrics

**Changes**
- Removed numpy array stuff
- Re-added raw data output (`self.data`) to report class
- Re-added `to_json(...)` method to report class

**Bug fixes**
- Fixed a bug that converted numerical values to strings
- Fixed a bug where presenting an invalid filter value to a report type with a required filter would raise a `KeyError` rather than `InvalidRequest`