* dynamically resize iframe based on content
* scroll on complete read-view instead of just iframe-content
* open writer when email address is clicked in iframe
* convert tabs to spaces in read-directive file
* Scale html mails to viewport only from the outside
* Delete release branch before each release in aws_release.sh script
* Make read-controls in read view always visible
* Remove recursive ng-includes/templates
* Use DOMPurify to sanitize reader input
* Remove ngSanitize
* Wait to show signature error until body has been parsed
* Fix scrollbar in iframe
* Allow iframe scrolling on iOS
* Move mail text body rendering to sandbox
* Cleanup html files