change internal release versioning to 1397xx for alpha
[codegen] also look for JsonSchemaBuilder in PATH
[Jsonbuilder] properly mark as built
[buildsteps] pass JSON_BUILDER to bootstrap on rbpi
Merge pull request #4633 from MartijnKaijser/release_versioning

change internal release versioning to 1397xx for alpha
Merge pull request #4634 from wsnipex/upstream-master

fix JsonBuilder on rpi