1.3.0-rc1

New

• The Notification Center now provides a queue gateway that buffers messages and sends them based on cron job settings (#63)
• The "store to file" gateway now supports appending to an already existing file (#65)
• InsertTags as well as Simple Tokens are now allowed in sender e-mail name and sender e-mail address fields as well (#40 and #58)
• Added support for file uploads in form generator fields that can now use the upload attachment token (#39)