MAPREDUCE-6046. Change the class name for logs in RMCommunicator.
Contributed by Sahil Takiar.

(cherry picked from commit 0bd022911013629a8c9e7357fae8cf4399d7a1e3)
YARN-2243. Order of arguments for Preconditions.checkNotNull() is wrong in
SchedulerApplicationAttempt ctor. Contributed by Devaraj K.

(cherry picked from commit bda748ac3abf30f6cd4c0e22c80c73396abc59fb)