hide total stats by default; issue #812
split limit type "costs"; issue #633

split limit type "costs" into "costs (excl.)" and "costs (incl.)", hide amount for "total merger plans"
revert ccbf0..; split limit type costs; issue #633

merge both costs settings but show "free" in widget,
ignore amount if non awailable
allow mms to in-/exclude numbers; issue #775
fix SUM_CPP; issue #819