evolve: add a tr arguement to retractboundary
Mercurial core is adding a transaction argument to its phase movement function.
We do the same. If Mercurial appears to be an old version (without the extra
args) we call it the old way.
recursive-include docs/figures *.svg
include docs/figures/hgview-example.png
include docs/*.rst
include docs/*.py
include docs/tutorials/*.t
include docs/makefile
include docs/static/*.svg
include hgext/__init__.py
include hgext/evolve.py
include hgext/pushexperiment.py
include setup.py
include README
include COPYING
include tests/*.t
include tests/*.py
exclude tests/test-oldconvert.t
exclude tests/test-qsync.t