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hooked up presentation promotion

euroscipy/symposion,pyconau2017/symposion,faulteh/symposion,miurahr/symposion,pyconca/2013-web,pinax/symposion,TheOpenBastion/symposion,pydata/symposion,pinax/symposion,pyohio/symposion,TheOpenBastion/symposion,pydata/symposion,NelleV/pyconfr-test,python-spain/symposion,mbrochh/symposion,mbrochh/symposion,pyconca/2013-web,NelleV/pyconfr-test,toulibre/symposion,faulteh/symposion,miurahr/symposion,python-spain/symposion,pyohio/symposion,toulibre/symposion,euroscipy/symposion,pyconau2017/symposion