Working on improved dates for API. #982
Refactored date ranges for sales. #982
Updated dates rangefor yesterday. #982
Updated dates for this month and last month. #982
Updated dates for this year and last year. #982
Added support for this_quarter and last_quarter sales. #982
Updated earnings with new date ranges. #982
Simplified previous month / year
reenabled caching
Corrected earnings totals
Merge pull request #1014 from pippinsplugins/api-date-dev

Api date dev
Correct W3TC cache check
minor improvements to edd_has_user_purchased()
Introduce edd_get_payment_user_id(). For #1010
Updated edit payment process / forms to use helper functions
Merged file download log meta box and sale stats metabox. Closes #1013
Make symlinked file downloads disabled by default with option to turn them on. Closes #1005.
Forgot global ;. #1005
Updated @return for edd_get_payment_user_email()