Added MULTIEXCESS to track excess removed from tubes
Increase ROMA speed, use fast wash for periodic washes
Handle blank code following 'D' commands (hack)
Updated trp20130502
Set airgap consistently to 10µl @ 20µl/sec
Don't multidispense into tubes that already have something

Handle slight fuzz in volumes
Improved diagnostic messages
Enable real PTC programs
Use special LC for mixing >20µl liquids
Use qPCR plates
Added 'program' function