MacFixup:  Add UPP.h
[NEW] mwdebug:  Add IsMetroNubInstalled() function
mwdebug:  Add MetroNubVersion() function
mwdebug:  Add IsDebuggerRunning(), AmIBeingMWDebugged()
MacFixup:  Add DEFINE_UPP_1()
MacFixup:  Add DEFINE_UPP_2()
MacFixup:  Use UPP.h in Timer.h
MacFixup:  Use UPP.h in Threads.h
Merge branches 'Timer-UPP' and 'Threads-UPP' into MacFixup-UPP
Merge branch 'MacFixup-UPP'
Merge branch 'mwdebug-api'
[NEW] mwnub:  Print MetroNub version and status