v0.2.0

Breaking Change

Change custom date range aggregation query variable from a single array custom_date_range to two separate variables date_gte and date_lte. This resolves an issue (#84) where if the start date was cleared, the end date would incorrectly replace the start date and the end date would be cleared.

Developers using the form provided in the custom date range class do not need to update their code, but those using custom processing with the custom_date_range parameter must update their code to use date_gte and date_lte instead.