Added comments in several MCNP model about curvature of supports.
Added comment about paraffin gap and concrete walls in MCNP model for HEU-MET-FAST-026 case 11.
Added comment in MCNP model for HEU-COMP-INTER-003 case 6 about errors.
Added comment about lattice dimensions in MCNP model for U233-COMP-THERM-001 case 3.
Added comment about diagonal egg-crate in MCNP model of MIX-COMP-THERM-002 case pnl-32.