fold: add --message and --logfile options
Like other commit-creating commands, this add two options for
specifying the resulting commit message, with tests. If either of
these options is specified, no editor is popped up asking for a commit
message.
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