fix functional test by implicitly waiting for DOM element
fix functional test by implicitly waiting for DOM element

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