* Add documentation about how the cli can be built with a native image
* Finish rest of documentation on building command line client for bitcoin-s
* Add missing akka actor on walletServer classpath, add plugins to be able to build the walletServer as a standalone jar
* Add server.md
* Rename walletServer -> appServer
* Address code review, add missing main class in server project
* Address code review
* Bump Scala versions
Support Scala 2.12.9
and 2.13.0.
To make this easier, we delete the `scripts` project. Everything
that was in here was covered by content on the website. We also
delete the `doc` folder, as that was a remnant from when `scripts`
was called `doc`.
* Crib uPickle akka-http support while we wait for publish
* Fix compiler warnings
* Add note on test logging to contribution guide
* Reduce duplication in Blockchain implementation
* Use Scala 2.12 for website
* Introduce compat package object for collections converters
* Fix Either compiler warnings
* Add sync-chain and create-wallet docs from deleted scripts
* Fix rebase goofup
