[QIP] - Update QIP 00011 based on Wizeguys feedback. (conversion controller)

[mibuono]

This is related to the conversion controller: quai-network/qips#32

[mibuono]

The spec here is not in date. Current implementation will have a conversion factor that updates in prime blocks. Price won't be updated until the next prime block. Users who submit a conversion transaction in a zone where there is not a prime block will have their transaction executed on the coincident prime block at the new calculated price.