The configuration file containing the session name information is now at
the HOME location and named ".lttngrc".
The trace output directory is now at the HOME location and named
"lttng-traces" containing the traces of each sessions identified by the
top level directory called "session_name-date-time".
Also fix the metadata's path that was pointing to the old default path
in /tmp/lttng.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>