set actual modem receive speed to 48K
picotcp: avoid spurious retransmit after window full. set min RTO to 1
sec.
buffer incoming data until pico socket can accept it.
limit tcp payload to 512 bytes.
Issue #114
Use default asyncmap for LCP control packets
Delay reading from picotcp ppp stream when connecting
Accept [PSH,SYN] as valid tcp connect packet
Add PBA Tour Bowling 2001 as wince game
Disable vmem32 for StarLancer and Maximum Pool (req'd for online support)