Cream gahp may allocate insufficient memory for threads. #4416

Increasing the number of worker threads above the default via
CREAM_GAHP_WORKER_THREADS results in overrunning the array of thread ids.
change release branch version to 8.2.1
Merge branch 'V8_2_1-branch' into V8_2-branch
change V8_2-branch to 8.2.2
Merge branch 'V8_2-branch'

Conflicts:
	CMakeLists.txt