Remove unstable warning
Fix issue where From address was removed from Cc and Bcc fields when editing a draft (#1489319)

Conflicts:

	CHANGELOG
Fix de_DE localization of "About" label in Help plugin (#1489325)
Fix expanded thread root message styling after refreshing messages list (#1489327)
Fix attachment icon issue when rare font/language is used (#1489326)

Conflicts:

	CHANGELOG
	skins/larry/styles.css
Update releases list
Apply various IPAX fixes and add cleanup.sh script
Add IPAX configuration files
Temporary CSS fix