86F format handler updated to 86F version 2.0 and bit by bit handling;

FDI stream images are now also handled by the 86F handler;
Both floppy drives' motors now spin separately;
Added Plantronics ColorPlus emulation per patch from PCem forum;
Applied all mainline PCem commits;
Fixed several bugs.

src/device.c

@@ -21,7 +21,7 @@ void device_add(device_t *d)
         int c = 0;
         void *priv;
         
-        while (devices[c] != NULL && c < 256)
+        while ((c < 256) && (devices[c] != NULL))
                 c++;
         
         if (c >= 256)