obsolete: simplify rebase wrapping code and change relation creation We have don't have changeset simply pruned by rebase. When they disapeared, that means that destination is a valid successors for them.

syntax: re
/figures/[^/]+\.png$
^docs/build/
^docs/html/
^html/
\.pyc$
~$
\.swp$
\.orig$
\.rej$
\.err$
^tests/easy_run.sh$