Attachments should not persist across calls to send()
Allow callers of EDD_Emails->send() to specify the main heading that goes in the email template
Fixes to previous attachment changes
Merge branch 'attachments_persistence' of
https://github.com/leewillis77/Easy-Digital-Downloads into
leewillis77-attachments_persistence
Remove changes relating to heading in email template
Merge branch 'attachments_persistence' of github.com:leewillis77/Easy-Digital-Downloads into leewillis77-attachments_persistence
Fix merge conflict for #2551
Remove edd_email_default_attachments filter. #1810
Remove get_attachments() test. #1810
Correct the date setup for 'yesterday' when the current day is the first day of the month in EDD_Stats. Closes #2553
#2555 - Brackets for if statement, and allowing 'size' to be passed in to set the number of rows for the textarea
Merge pull request #2556 from cklosowski/issue/2555

Allow 'size' attribute on rich_editor settings
Set the heading to an empty string after email is sent. #1810
Fix incorrect link in Sales column.#2557
Check for partial paypal refunds
Add PayPal bn code
Fix incorrect cart quantity updating when multiple downloads of the same ID but different price options are in the cart
Fix display of item price on checkout when tax is excluded.
Compress scrips and styles