The ComForce observable should be renamed to TotalForce

[RudolfWeeber]

at least that's what the documentation claims it calculates. That's also what would make sense, physically, I think.
The code currenlty calculates
sum F_i m_i
and doesn't normalize by sum_i m_i. I don't think, that makes sense.

[fweik]

If you rename it, it should be called TotalForce, which is a more common term (think total charge, total current, total momentum, ...).

[RudolfWeeber]

locations to work on:
/src/core/observables
src/script_interface/observables (including intialize.cppp)
src/python/espressomd/observable.py

[pkreissl]

I'll work on this one.