Floating preview to mimic Info Panel Preview

[binocular222]

Currrently, Floating preview:
- View all Office files as binaries while Info Panel Preview use Microsoft Preview Handler
- Cannot view animated gifs while Info Panel Preview can
- View text files as text while Info Panel Preview can choose Web, Office preview mode

Untitled20131026204450.png (138.58 KiB) Viewed 664 times

I think it's best to make Floating preview as powerful as Info Panel Preview
P.S: We should combine Floating Preview and Quick File view. It's confusing to separate these 2