Version -> 0.49d
Recognize keyer type according to FTDI serial number
Changed member name 'specific' to 'instance'
FIX when connector creation failed it was removed from config.
Added connector status information.
Fixed possible deadlock with blocking write() calls on VSP
Fixed blocking read() call handling on VPS
Added PTT tracking to VSP module.
Changed default menu to "mode"
Bumped version to 0.50rc1