* Use ReportTable in Orders report
* Get totalCount from hte X-WP-Total header
* Order props alphabetically
* Cleanup report table 'tableData' prop
* Use short-circuit evaluation
* Use X-WP-Total header to set the total number of items in tables
* Improve naming
* Improve tests
* Make getReportItems() return a 'data' property by default
* Make getSummary prop behavior more clear