Removed the i_ prefix from several symbols that don't appear in the input GDX file: i_sequentialSolve, i_useAClossModel, i_useHVDClossModel, i_useACbranchLimits, i_useHVDCbranchLimits, i_useReserveModel, i_disconnectNodePriceCorrection, i_useExternalLossModel, i_resolve x3. Also changed i_useMixedConstraint to suppressMixedConstraint (default = 0)