write :scheduler_lock/:trigger_lock initial doc
write :scheduler_lock/:trigger_lock initial doc

for gh-132

kssminus/rufus-scheduler,moritoru81/rufus-scheduler,0612800232/rufus-scheduler,shutl/rufus-scheduler,railsfactory-kumaresan/rufus-scheduler,safesoftware/rufus-scheduler,AndBicScadMedia/rufus-scheduler,moss-zc/rufus-scheduler,jmettraux/rufus-scheduler