* [NOD-1582] Fix multiple request per missing ancestor
* [NOD-1582] Don't remove peer on routerpkg.ErrRouteClosed from RPC
* [NOD-1582] Use LogAndMeasureExecutionTime where possible
* [NOD-1538] Fix minimal net adapter.
* [NOD-1538] Don't insert block relation until we've validated that the block's parents exist.
* [NOD-1538] Don't hold addressManager in MinimalNetAdapter.
* [NOD-1538] Fix a comment in messages.proto.
* [NOD-1223] Delete unused files/packages.
* [NOD-1223] Move signal and limits to the os package.
* [NOD-1223] Put database and dbaccess into the db package.
* [NOD-1223] Fold the logs package into the logger package.
* [NOD-1223] Rename domainmessage to appmessage.
* [NOD-1223] Rename to/from DomainMessage to AppMessage.
* [NOD-1223] Move appmessage to the app packge.
* [NOD-1223] Move protocol to the app packge.
* [NOD-1223] Move the network package to the infrastructure packge.
* [NOD-1223] Rename cmd to executables.
* [NOD-1223] Fix go.doc in the logger package.