* Removed ability to lock data section
* Introduced "guided mode" to simplify process
* Refactored the sketch to be less monolithic
* Print details and instructions in tables
* Use device unique ID as serial when
* Calculate and store personalization checksum
* Print serial in a copy+paste friendly manner (fixes#804)
* Clarify meaning of UART confirmation (fixes#805)
* Made delay waiting for GW to transmit signing preferences apply
also if signing is disabled since nodes always sends a signing
presentation, and GW always replies with it's own presentation.
This can cause message collition if the node at the same time
proceed with other presentation messages.
* Made the signing backend "consume" signing presentation
messages sent by GW when signing is disabled. These messages
should not be forwarded to the "user".