allow to set bIgnoreNops, bTrack and bPersist from ControlPotmeter
Moved set and setDefault in ControlPotmeter from setRange to constructor.
It is not expecte to be in setRange in loadEffect()
Moved config saving after desposing all COs, this allows to use persistant COs
Make master and headphone delay persistant
Merge pull request #235 from daschuer/persistant_co

Persistant co