-- Made sweep baseFileName an optional parameter, so that someone doesn't have to have a file prefix.
-- Added an option to automatically output concentration real space grid files during sweep. (Is this where it should be?)
-- Changed the "_dat" output file suffix to ".dat" for consistency with the convention for other files. Should this be ".out", like in Fortran pscf?
-- Merged in changes from devel.
-- Made sweep baseFileName an optional parameter, so that someone doesn't have to have a file prefix. -- Added an option to automatically output concentration real space grid files during sweep. (Is this where it should be?) -- Changed the "_dat" output file suffix to ".dat" for consistency with the convention for other files. Should this be ".out", like in Fortran pscf? -- Merged in changes from devel.