WinUAE 2.3.2 Beta 6

http://www.winuae.net/files/b/winuae_2320b6.zip

Beta 6:

- Display panel overwrites chipset_refreshrate decimal part only when slider is adjusted
- Display panel directly accepts non-integer refresh rates
- last serial port device was not listed (b1)
- added serial_stopbits configuration parameter, sets Paula serial port emulation stop bit length. (0 = 1bit, 1 = 1.5bits, 2 = 2bits) Technically it should always work but at least some USB adapters don't seem to reliably read Amiga serial data at 19200 without setting it to 1 or 2. (interestingly for example 115200 works fine, this is quite confusing)
- Gameports panel remapping fixed (b4)
- avioutput refresh rate was not rounded to nearest integer (b5)
- fixed crash when switching from RTG mode to native mode (old bug, only in specific combination of filter and display settings)