* Fixes for better support of date formats
* Set table datepicker to use ISO_8601 date format ('yy-mm-dd'), this will only be used for setting/saving date
* Added sale price history, bulk option to get previous sale price
* Minor fix for saving tags on variable products
* Fix for paging on sku and text search
* Added options(in settings) for statuses you want to query i.e publish, draft, private and pending
