fix-bugs-mid-csp-lmc-0.5.3-image: after MVP integration tests, found a bug in

CspMaster monitoring thread.
Reduced the sleep time inside the thread function (from 1 to 0.1 sec).
Removed the callback registration with the asynch commands.
CSP State update is updated inside the event callback only when the CSP
is not running power commands.
Updated HISTORY, release and conf.py files.