Fix: when downloading bulk documents on journalist interface, use the database designation for the source (closes #207)
Fix: when downloading bulk documents on journalist interface, use the database designation for the source (closes #207)

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