Change variable name to avoid DEP8 complaints

Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>
Implement final data gathering

Once tests are finished, remount NFS dir and get the
remote tests back in /var/crash with the appropriate test tag.
Some sleep() are needed to give time to NFS to be ready

Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>
DEP8 cleanup

Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>
Remove unused variable

Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>