Blog of Cube Player

Changelist:

1. Add download queue, the maxmium download count is 5.
2. Fixed some bugs of UI.
3. Enable drag select on the search result list.

Fixed an urgent bug: the player will crash when drag musics to playlist.

From version 0.34, we changed the music search engine to Google, since google opened the music search in China only, you may get Chinese result even search in English keywords.