Maize Sampler 2.20 Update

[caoxiang]

- Fixed a crash when unloading the player
- Fixed a possible resampling artifact in the engine
- Added the multiple output channel support (16 out)
- Upgraded to JUCE 2.0 application framework
- Fixed a problem related group selection in player
- Combo box does not have focus outline anymore

http://www.maizesoft.com/cms/?page_id=48