Update Travis configuration to create user to run run-as-user test with.

.travis.yml

@@ -18,7 +18,9 @@ install:
   - sudo service munge start
   - sudo python scripts/configure_test_slurm.py
   - echo "export DRMAA_LIBRARY_PATH=/usr/lib/libdrmaa.so" >> local_env.sh
-  - pip install drmaa
+  - pip install drmaa 
+  - sudo adduser --quiet --disabled-password --gecos TEST u1  ## Create user for run-as-user test.
+
 #  - sudo apt-get install condor
 script: . local_env.sh; nosetests