David Cordero authored Apr 25, 2018 and Carola committed Apr 29, 2018

Fastfile:convert format of changelog to the one defined by keepachangelog.com to make it easier to parse

Adjust update_changelog to the new format and add the new parameter 'platform' to set_changelog
Add missing emoji in the error to match the other errors format
Update fastlane to have the new parameter 'platform' available in the set_changelog action