A full robot vs. robot game now works between two Treos. Added UI to
choose BT as transport mechanism, and added new send proc to establish
socket connection between host and guest. Works only for two devices:
no piconet yet. No error recovery, ability to quit game in middle,
start new game, etc.
changes (shifting util functions around) that follow from that. Back
version number down to 4.1.5 since that'll be the next shipped from this
branch. Add juggle button to newgame -- the whole point of this.
