rebase

USER-INTEL: Adding missing backslash for two Makefiles using Intel co…

Replace OS provided XDR support with bundled code

Address bug in multifile restart writing with step number included

Sanity check on created/read-in bonds/angles/dihedrals/impropers

Consistent checking of Tersoff potential parameters

Dumping to multiple files failed with an error message complaining about a missing 'append yes' option.

Update CMAP related docs and rebuild example input decks

Make the USER-ATC package depend on MANYBODY

modifications to correctly print modified dihedrals, impropers

Added double quotes to a word in Section_tools.txt file

User mofff contribution

Fixed recent segfault in fix gcmc and added mcmoves keyword

Fix bug in FixPropertyAtom

Add the UFM pair potential - (GPU/OPT/OMP)

BUG: Dumping to multiple files failed with an error message complaining about a missing 'append yes' option.