fixes #641 trigger group can be left as paused when all triggers have been removed
fixes #641 trigger group can be left as paused when all triggers have been removed

quartznet/quartznet,sean-gilliam/quartznet,quartznet/quartznet,quartznet/quartznet,sean-gilliam/quartznet,sean-gilliam/quartznet,sean-gilliam/quartznet,quartznet/quartznet,quartznet/quartznet,sean-gilliam/quartznet