added optional pool argument for fitting bootstrap
added optional pool argument for fitting bootstrap

brookehus/msmbuilder,Eigenstate/msmbuilder,msultan/msmbuilder,brookehus/msmbuilder,stephenliu1989/msmbuilder,msultan/msmbuilder,msultan/msmbuilder,peastman/msmbuilder,mpharrigan/mixtape,peastman/msmbuilder,peastman/msmbuilder,rafwiewiora/msmbuilder,cxhernandez/msmbuilder,stephenliu1989/msmbuilder,brookehus/msmbuilder,Eigenstate/msmbuilder,msmbuilder/msmbuilder,brookehus/msmbuilder,dr-nate/msmbuilder,Eigenstate/msmbuilder,stephenliu1989/msmbuilder,dr-nate/msmbuilder,rafwiewiora/msmbuilder,msmbuilder/msmbuilder,cxhernandez/msmbuilder,msmbuilder/msmbuilder,msmbuilder/msmbuilder,mpharrigan/mixtape,msultan/msmbuilder,cxhernandez/msmbuilder,stephenliu1989/msmbuilder,peastman/msmbuilder,dr-nate/msmbuilder,brookehus/msmbuilder,Eigenstate/msmbuilder,mpharrigan/mixtape,msmbuilder/msmbuilder,rafwiewiora/msmbuilder,rafwiewiora/msmbuilder,dr-nate/msmbuilder,msultan/msmbuilder,rafwiewiora/msmbuilder,peastman/msmbuilder,mpharrigan/mixtape,dr-nate/msmbuilder,mpharrigan/mixtape,cxhernandez/msmbuilder,Eigenstate/msmbuilder,cxhernandez/msmbuilder