Paul Morelle <paul.morelle@octobus.net> [Fri, 12 Jan 2018 18:58:44 +0100] rev 35638
revlog: introduce 'deltainfo' to distinguish from 'delta'
A 'delta' is a binary diff between two revisions, as returned by revdiff.
A 'deltainfo' is an object storing information about a delta, including
the 'delta' itself.
Formerly, it was stored in a 7-position tuple, which was less readable.