[MAPREDUCE-2692] Ensure AM Restart and Recovery-on-restart is complete - ASF JIRA

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Need to get AM restart and the subsequent recover after restart to work

1.	[MR-279] Design and implement MR Application Master recovery	Closed	Sharad Agarwal
2.	MR-279: AM restart does not work after RM refactor	Closed	Sharad Agarwal
3.	[MR-279] OutputCommitter changes for MR Application Master recovery	Closed	Sharad Agarwal
4.	MR-279: Need to retrieve shuffle port number on ApplicationMaster restart	Closed	Jonathan Turner Eagles
5.	Port MAPREDUCE-2702 to old mapred api	Closed	Arun Murthy
6.	AM fails to restart when first AM is killed	Closed	Mahadev Konar
7.	Recovery of MR AMs with reduces fails the subsequent generation of the job	Closed	Vinod Kumar Vavilapalli
8.	When AM restarts, client keeps reconnecting to the new AM and prints a lots of logs.	Closed	Vinod Kumar Vavilapalli
9.	AMRecovery should pick completed task form partial JobHistory files	Closed	Arun Murthy
10.	AppMaster recovery for Medium to large jobs take long time	Closed	Robert Joseph Evans
11.	If an MR AM dies twice it looks like the process freezes	Closed	Vinod Kumar Vavilapalli
12.	Restarted+Recovered AM hangs in some corner cases	Closed	Vinod Kumar Vavilapalli