Replaced unicode() by six.u()
Replaced unicode() by six.u()

ropable/biosys,gaiaresources/biosys,gaiaresources/biosys,ropable/biosys,parksandwildlife/biosys,parksandwildlife/biosys,serge-gaia/biosys,serge-gaia/biosys,serge-gaia/biosys,ropable/biosys,parksandwildlife/biosys,gaiaresources/biosys