rather than placing an if statement around every incidence of calling atom->check_mass() to ensure it is only called when per atom masses are not set, we place that check _inside_ Atom::check_mass(). This avoids unexpected error messages.

fix issue with rRESPA inner/middle neighbor lists

Collected small changes and bugfixes

may check for 1-4 scaling factors in CHARMM dihedral styles only when "weightflag" is set, since they may be used with amber

insure compute pair/property local will use a copy of granular neighbor list

minor changes to NEB doc pages and examples

Implement workaround for NVCC incompatibilities with OpenMP directives

Updates for USER-INTEL package and NEB command flags/docs updates and issues

Refactor Dump and Irregular classes to remove static class members

this version eliminates the need for the PBCconnected list and avoids having to access the spec_atom array for ghost atoms

protect all OpenMP pragmas with ifdefs and add special conditions for nvcc to ignore unsupported directives

removed are:
- DOS/Windows text format carriage return characters (^M)
- tabs replaced with spaces (tabs are evil!!)
- trailing whitespace