serveronly: deduplicate code with the main evolve extension
Now that 'serveonly' is a sub module of evolve. We can access its content in
evolve. As a result we stop duplicating code all common parts are defined in the
'serveronly' module and imported by evolve when needed.
syntax: re
/figures/[^/]+\.png$
^html/
\.pyc$
~$
\.swp$
\.orig$
\.rej$
\.err$
^tests/easy_run.sh$
^build/
^MANIFEST$
^docs/tutorials/.*\.rst$
\.ico$
tests/\.testtimes