add Saturate function
exclude the non-topological mutators by default
Revert "add Saturate function"

This reverts commit 5feb5345c230bad88d84777b5676029ec72e44ac.
set GOMAXPROCS to 4 to make sure to test w/ multiple threads as often as possible
tweak MaxIterationsBeforeRestart
improve logging statement
add logging to test
logging change
neurvolve now runs again
call cortex.Init() within Run() method, no need to call in other places.
remove reinit flag