Maize Sampler 2 beta 2 released

[caoxiang]

Changes:

1. Add a built-in reverb effect.

2. Allow multiple sample selection in editor.

3. Add release trigger group property.

4. Add sample mapping dialog.

5. Bug fixes.

go to http://www.maizesoft.cn for more info.

Tips on the mapping editor:
To choose the root note of a sample, select it and then right click on any note of the keyboard below.
To add multiple samples together, press F5, choose the sample files with shift-key and then check the "distribute samples equally in the note range" option in the sample mapping dialog.