Tweak command lookup key lengths.
Make sure command parameters list is always created.
Expand options for help command.
Remove redundant list decrement.
Rewrite list implementation to use a separate data type, remove superfluous debugging information.
Update command registration macro.
Make list casts more consistent.
Fix profile name length.
Update list handlers and shorten usage message in serval plugin.
Add list functions to get first and last nodes in list.
Update list functions in loop.
Ported core commands and moved them back into daemon.c