This abstract class catches errors and echoes a short message
instead of printing a stacktrace. This is especially useful
when the CLI cannot connect to phoenixd (e.g. wrong port). We
can also factorise some of the code.
There is now only one database file, phoenix.db. This
makes database backup easier.
Legacy channels closing parts have been removed (we
use a dedicated table to store closings).
The tables storing lightning outgoing payments have
been renamed for consistency by addingd a "lightning"
prefix. The related kotlin classes have been renamed
as well.
