BUG-11353: escalate to a forced kill --automatic approach
Add explicilty main method in HoyaAppMaster, purely to make jps -l identify AMs more easily
add setter for wait time attribute too
BUG-11353 add a -force to freeze, which triggers an YARN kill of the app over anything else. With a test that hangls the AM then does the freeze
Merge branch 'feature/BUG-11353' into develop