Changes to be consistent with new diracsolver file names (dm names).
Charge density saved and r and E grids loaded specifically for N.
CODE OBSOLETE!!!!!! (Replaced by diracsolver).
Merge branch 'master' of https://github.com/avshytov/Coulomb-Impurity into summertime
Merge branch 'summertime' of https://github.com/avshytov/Coulomb-Impurity into summertime
Merge branch 'summertime' of https://github.com/avshytov/Coulomb-Impurity into summertime