TRQ-2761 momctl warnings about communicating with server
 - Fix resmom/test/mom_main unit test
After run all unit tests.
  - fixed resmom/linux/test/numa_node
Merge pull request #258 from DSRCompany/TRQ-2761_unit_test_problem

TRQ-2761: unit test problem
TRQ-2868. Add $HOSTNAME to the job's environment variables.

This allows a job to be submitted with an output path of something like
-o ~/\$HOSTNAME and have the hostname get added to the job's path.
TRQ-2594. Port using the munge API.

Lukasz Flis contributed making munge use the API to the 2.5 series of
code, and I am getting this into our newer codebases now.