[MERGE] add JUL update on registration support

Signed-off-by: David Goulet <dgoulet@efficios.com>
[HEAD MERGE] Add lttng list -j command to list possible events

Signed-off-by: David Goulet <dgoulet@efficios.com>
[MERGE] add list JUL domain for a session

Signed-off-by: David Goulet <dgoulet@efficios.com>
[MERGE] fix: list -j syntax in help

Signed-off-by: David Goulet <dgoulet@efficios.com>
[MERGE] Fix disable all JUL event to handle wild card

Signed-off-by: David Goulet <dgoulet@efficios.com>