changes to anneal function, made my own from scipy
changes to anneal function, made my own from scipy

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