Debug can be enabled with the command "ejabberd_loglevel:set(5)".
(EJAB-74)
* src/ejabberd_app.erl: Likewise.
* src/ejabberd.hrl: Likewise (More log levels are now supported).
* src/ram_file_io_server.erl: Likewise (Needed to dynamically
recompile the error logger).
SVN Revision: 689
