GillespieSSA    GillespieSSA demonstration (running all demos below)
decayingDimer   Decaying-Dimerization Reaction Set model
linearChain     Linear-chain model
logisticGrowth  Logistic growth model (Pearl-Verhulst model)
lotka           Lotka predator-prey model
rma             Rosenzweig-MacArthur predator-prey model
sir             Kermack-McKendrick SIR model
epiChain        SIRS metapopulation model

