1. Fix the issue DAW crash when asio buffer is larger than 1024. Smaart will use asio buffer=2048..
1. Fix the regression that v188.8.131.52 stucks on some win7 platform.
1. Let safemode checkbox uncheckable on win7 because we don't support in on win7.
1. Eliminate dropouts.
1. Delay 400ms after SetSampleRate, otherwise i2s could make codec hang, then leads to no sound .
2. Fix the issue of failing to open render usb interface on some platforms in safemode.
3. Add some status/info to ASIO control panel.