Transfer only debug configuration filles when livesyncing over usb

http://teampulse.telerik.com/view#item/275633 - Fixed the last two failed acceptance criteria
Ok, so the regex should be something like this ^(.+?)[.](%s)([.]\\w+?)$
\w is required only in case we do not expect any other special symbols (., !, etc.) 
Anyway, the regex has not been changed in this pull request, so maybe this discussion is not so relevant here :)