enhance cli
1.limit range recovery threads one time
2.add rmconf command
correct codes for pull request review 26b800e
some optimizations:
1. Decouple collectornode port from supervisor
2. remove MISSED status of stage
3. recorrect some incompatible protocols of PB
bugfix: add a time buffer to avoid generating incorrect rollIdent due to clock unsynchronization.
enhance cli:
add "dumpapp" and "help" command.
1.Fix the bug RollRecovery threads overstock in appnode.
2.Add checkdone code to blackhole repository