Problems with ramp constraints when using integer investment variables with continuous online variables
q_rampUpLimit, q_rampDownLimit, and q_rampSlack: Conditions "${not uft_onlineLP(unit, f, t) and unit_investLP(unit)}" and "${not uft_onlineMIP(unit, f, t) and unit_investMIP(unit)}" should probably be replaced by conditions "${not uft_online(unit, f, t) and unit_investLP(unit)}" and "${not uft_online(unit, f, t) and unit_investMIP(unit)}"