update todo sync.readme in preparation for v1.6-beta
update todo sync.readme in preparation for v1.6-beta

guaycuru/gmvault,gaubert/gmvault,guaycuru/gmvault,erdincay/gmvault,guaycuru/gmvault,gaubert/gmvault,erdincay/gmvault,gaubert/gmvault,erdincay/gmvault