Comment 7 for bug 1716475

I have a working branch at http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/kmlussier/lp1716475-add-label-for-sms-selector that adds a label inside the menu.

In addition to addressing the translation issue, I think this the label is recommended for usability. See Labeling Select Menus here: http://uxmovement.com/forms/stop-misusing-select-menus/