i18n-pt_BR: synchronized with
d63fb1fce977
i18n-ja: synchronized with
86a3bb9c5f5c
obsolete: function and method to access some obsolete data
An `obsolete` boolean property is added to changeset context. Function to get
obsolete marker object from a changeset context are added to the obsolete
module.
obsolete: exchange obsolete marker over pushkey
For a version of the exchange, all markers are exchange. This won't
scale and we will need a better protocol later.