Bug 966828 - [User story] Add face tracking capability
Bug 961675 - Send device information to Everything.me Partners API [r=ranbena, kgrandon]:
* bug 1018926: Disable Rocketbar tests requiring Geolocation permission [r=daleharvey]-
* new permissions: added "geolocation" and "mobileconnection"
* new eme.device module
* eme: boot now waits for device information and geolocation
* api: removed 'withCredentials' from API requests
* api: support for cached requests