STORM-307: reset LocalState if files are corrupt

[wurstmeister]

• allow supervisor to start even if LocalState files are empty

[wurstmeister]

Thanks @HeartSaVioR! should be fixed now.
I was wondering if we actually need this retry logic. i.e. if we can just reset the state whenever there is an IOException (rather than not starting up and users having to manually remove state files).

I am not sure why the retry logic was implemented this way, so I picked out the empty file case because that's been reported multiple times (incl the workaround of resetting the state).

[ptgoetz]

+1

[Parth-Brahmbhatt]

+1

[clockfly]

+1