evolve: have dirstate collaborate with transaction
With 3.6, dirstate update can work with transaction to ensure proper rollback.
We do it if the mercurial version permit it.
all: tutorials/tutorial.rst static/logo-evolve.ico
sphinx-build . ../html/
tutorials/tutorial.rst: tutorials/tutorial.t
python test2rst.py tutorials/
static/logo-evolve.ico: static/logo-evolve.svg
convert -resize 36x36 static/logo-evolve.svg static/logo-evolve.ico