-add explanation of daemon authentication to AuthJSONRPCServer docstring
-remove auth_required decorator, use auth for all api methods if use_authentication is true
-fix issues with the command line --http-auth flag to lbrynet-daemon and the use_http_auth setting in the config file
When starting a daemon with a different configuration,
the same should also be used by the cli tool.
Add the --conf flag to the cli command to allow using a
custom config file.
Signed-off-by: Antonio Quartulli <antonio@mandelbit.com>