Cleaning up backspace key handling.
Cleaning up backspace key handling.

pcoughlin/appmaker,lexoyo/appmaker,ekospinach/appmaker,lexoyo/appmaker,nirdeshdwa/appmaker,ekospinach/appmaker,mozilla-appmaker/appmaker,pcoughlin/appmaker,mozilla-appmaker/appmaker,valmzetvn/appmaker,sheafferusa/appmaker,uche40/appmaker,mozilla-appmaker/appmaker,uche40/appmaker,valmzetvn/appmaker,secretrobotron/appmaker,lexoyo/appmaker,valmzetvn/appmaker,sheafferusa/appmaker,nirdeshdwa/appmaker,vaginessa/appmaker,pcoughlin/appmaker,secretrobotron/appmaker,uche40/appmaker,ekospinach/appmaker,sheafferusa/appmaker,nirdeshdwa/appmaker,vaginessa/appmaker,vaginessa/appmaker