adding a travis yaml file for ci
adding a travis yaml file for ci

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