vtf charges-workaround, prepare_vmd connection moved to vtf

Conflicts:
	scripts/auxiliary.tcl
Updated NEWS.
Updated copyright headers and added GPL header to files where it was missing.
Fixed gcc 4.6 warnings.
Fixed the fix.
Fixed wrongly removed debug variables.
fixed memory leak in lbgpu
lb print_interpolated_velocity now works with only LBGPU
Fixes previous commit with regards to the print_interpolated_velocities