changes env vars to be DG_, with support for the old DGIT_ (happy to take that out though)
changes keychain keys to be decentragit. --- this release invalidates old ChainTrees anyways, so might as well just use a new namespace. Also took out the default key migration function because those keys will be useless now
just a few more dgit => dg/decentragit renames:
dgitprefix insidetree/dataDG_, with support for the oldDGIT_(happy to take that out though)decentragit.--- this release invalidates old ChainTrees anyways, so might as well just use a new namespace. Also took out the default key migration function because those keys will be useless now