not actions .on(..) / .off(..) support multiple space-seporated events in a singe call (a-la jQuery .on(..) )...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
minor update...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
now actions.on(..) support event arrays...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>