Changed name of two_state_equilibrium to equilibrate
Changed name of two_state_equilibrium to equilibrate

neurord/pysb,spgarbet/pysb,johnbachman/pysb,pysb/pysb,d-fan/pysb,alubbock/pysb,neurord/pysb,LoLab-VU/pysb,LoLab-VU/pysb,alubbock/pysb-legacy,d-fan/pysb,jmuhlich/pysb,spgarbet/pysb,neurord/pysb,alubbock/pysb-legacy,alubbock/pysb-legacy,johnbachman/pysb,spgarbet/pysb,d-fan/pysb,alubbock/pysb-legacy