obsdiscovery: automatically pick protocol in a list
This makes the code cleaner, clearer and more flexible. This also prepare the
ability to disable obsmarkers discover entirely.
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