EXT-5261 EXT-5263 EXT-5265 EXT-5266 EXT-5271 - Reformat NMF and enable...

EXT-5261 EXT-5263 EXT-5265 EXT-5266 EXT-5271 - Reformat NMF and enable behavior of media toggle in chrome
Review #100 http://10.1.19.90:8080/go?page=ReviewDisplay&reviewid=100

This encompasses the first of the behavioral and structural changes for the Nearby Media Floater and the chrome button at the top of the UI. It includes:
- Removal of the Parcel Media and Parcel Audio UI. Still not in the list yet.
- New More/Less button, which doesn't quite work right (see below)
- Changed icon for UI chrome
- Enabled "turning on" and "turning off" media from the chrome and NMF
- Added gear icon to bring up prefs
- XUI changes to the structure of NMF
- Implementation of the "tentative" autoplay flag

This is basically a checkpoint so that Richard can help with the More/Less implementation