Fix manage.py test_unit to use worker
Fix manage.py test_unit to use worker

harlo/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,jaseg/securedrop,conorsch/securedrop,jeann2013/securedrop,GabeIsman/securedrop,pwplus/securedrop,kelcecil/securedrop,jeann2013/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,micahflee/securedrop,ehartsuyker/securedrop,ageis/securedrop,kelcecil/securedrop,ageis/securedrop,kelcecil/securedrop,conorsch/securedrop,ehartsuyker/securedrop,GabeIsman/securedrop,jaseg/securedrop,ageis/securedrop,jaseg/securedrop,GabeIsman/securedrop,heartsucker/securedrop,jaseg/securedrop,kelcecil/securedrop,jrosco/securedrop,jaseg/securedrop,garrettr/securedrop,GabeIsman/securedrop,pwplus/securedrop,kelcecil/securedrop,chadmiller/securedrop,harlo/securedrop,chadmiller/securedrop,harlo/securedrop,jeann2013/securedrop,pwplus/securedrop,ageis/securedrop,pwplus/securedrop,chadmiller/securedrop,jrosco/securedrop,jrosco/securedrop,conorsch/securedrop,jrosco/securedrop,heartsucker/securedrop,garrettr/securedrop,jrosco/securedrop,GabeIsman/securedrop,harlo/securedrop,micahflee/securedrop,conorsch/securedrop,jaseg/securedrop,ehartsuyker/securedrop,GabeIsman/securedrop,heartsucker/securedrop,jeann2013/securedrop,pwplus/securedrop,chadmiller/securedrop,garrettr/securedrop,jeann2013/securedrop,kelcecil/securedrop,chadmiller/securedrop,pwplus/securedrop,harlo/securedrop,harlo/securedrop,chadmiller/securedrop,heartsucker/securedrop,conorsch/securedrop,garrettr/securedrop,jrosco/securedrop,jeann2013/securedrop,micahflee/securedrop,micahflee/securedrop