Bug 1027995 - [User story] Transfer ringtones from SD card to ringtones folder

WIP
The l10n team is in the middle of a drive to remove all explicit calls to get() from the code base. See bug 1043556, e.g.

If you can't always return a l10n id here (and I assume you can't because of things like artist names) then I'd suggest you return a string if the string does not need localization and otherwise return an object like { id: sdcard-subtitle }

Also, if Katie's UX spec calls for the string "SD Card", I suspect she will be overruled by more experienced UX people. I'm pretty sure that all the media app dialogs that refered to sd card were changes to say something more generic like "memory card" or "media storage" or something.  Keep in mind that it may not even be removable media of any sort.