MAINT Remove df to returns in bayesian. Also make test returns optional in run_model()
MAINT Remove df to returns in bayesian. Also make test returns optional in run_model()

YihaoLu/pyfolio,yanheven/pyfolio,raybuhr/pyfolio,femtotrader/pyfolio,chayapan/pyfolio,quantopian/pyfolio,ChinaQuants/pyfolio,r0k3/pyfolio,r0k3/pyfolio,sketchytechky/pyfolio,quantopian/pyfolio,dursk/pyfolio,femtotrader/pyfolio,yanheven/pyfolio,raybuhr/pyfolio,ChinaQuants/pyfolio,sketchytechky/pyfolio,YihaoLu/pyfolio,dursk/pyfolio