Bug #2172: Incorrect parameter deploy_info passed to network post script

(cherry picked from commit 8de607c88901b56f46272a19b54ae54658d6fe7b)
Typo in oneflow output. Thanks to Mohd Nizam

(cherry picked from commit 31faef8b04cebd1c014c4e6a4cf67898658e3a8e)
bug #2364: Better explanation of :action_period and :action_number in oneflow-server.conf