A check for perturbed listed pairs beyond rlist

A check for perturbed listed pairs beyond rlist

Excluded atoms pairs should be within the pairlist cut-off, as
otherwise long-range corrections are not applied. This is problematic
for free-energy calculations where intra-molecular interactions are
not coupled and replaced by pair interactions. Now a fatal error
is generated when perturbed pair interactions are beyond rlist.

Also added PME grid correction for LJ excluded pairs beyond rvdw,
which was missing from #3403.

Added missing release note for the fix of #3403.

Fixes #3403
Fixes #3809