.travis.yml: escape string with ! in it.
.travis.yml: escape string with ! in it.
johanneswilm/eha-nutsurv-django,johanneswilm/eha-nutsurv-django,eHealthAfrica/nutsurv,eHealthAfrica/nutsurv,eHealthAfrica/nutsurv,johanneswilm/eha-nutsurv-django