AcrylicMessageBox problem

[farhadala]

*When call acrylicMessageBox with YesNo button, if close it without any button, an exception was thrown. It must return "No" result.
*if you call messagebox for tow or more times, only first message text will be show

Another things:
*Override for messageboxIcon
*Play default windows sound
*Override for defaultButton. Set focus on default button any way.
*Return default result if press escape key.