fixing blanks
Merge branch 'experimental-mpi' of github.com:pcazade/MDBas into experimental-mpi

Conflicts:
	src/elec.c
	src/energy.c
	src/io.c
	src/list.c
errors are now written in a file specific to each node.
Little correction in the vv npt nose-hoover integrator.
Merge branch 'experimental-mpi' of github.com:pcazade/MDBas into experimental-mpi
Correction in the initial virial for vv integrators.
Corrections in the estimation of the CoM and the VoM in the Nose-Hoover NPT ensemble.
Three functions in utils.c were renamed.
Hueristic update of the list.
SPME debugged. Heuristic works.
Molecules are now rebuilt when written in the DCD file.
Merge branch 'experimental-mpi' of github.com:pcazade/MDBas into experimental-mpi