#888 drag&drop into player window to replace playlist

[Dan-yell Carpenter]

This might be discussable but in winamp you could drag&drop files into player window to replace playlist. I'd like to see this here, too.

In case someone was concerned about people deleting their playlist unintentionally, there are options to warn:
- Super-visible cursor change with warning sign
- Popup-window asking if "OK"

Experienced in KDE 4.13.2, Linux Mint 3.13.0-24-generic with Qmmp 0.10.4, compiled with Qt-Version 4.8.6

[eadmaster]

i second the request, the same can be done with regular audio files...