: type(t), author(a), changetime(ct) {}
/// is the change similar to the given change such that both can be merged?
bool isSimilarTo(Change const & change) const;
/// The color of this change on screen
: type(t), author(a), changetime(ct) {}
/// is the change similar to the given change such that both can be merged?
bool isSimilarTo(Change const & change) const;
/// The color of this change on screen