CHANGELOG: add an entry about `hg evolve --abort`
Previous patches added a new flag `--abort` for `hg evolve` which aborts an
interrupted evolve. Currently this only works for orphan resolution cases which
is very common and most people use `evolve` for that. So let's add an entry
about that.
evolve: restore bookmarks correctly after `hg evolve --abort`
This patch adds logic to store bookmark movements in evolvestate class and
restore bookmarks to their original place if `hg evolve --abort` is called.