Merge pull request #537 from edx/will/ora-celery-nltk-config

Configure NLTK_DATA environment variable for ORA celery workers

playbooks/roles/ora/templates/ora_celery.conf.j2

@@ -5,7 +5,7 @@ command={{ ora_venv_bin }}/python {{ ora_code_dir }}/manage.py celeryd --logleve
 user={{ common_web_user }}
 directory={{ ora_code_dir }}
 
-environment=DJANGO_SETTINGS_MODULE=edx_ora.aws,SERVICE_VARIANT=ora
+environment=DJANGO_SETTINGS_MODULE=edx_ora.aws,SERVICE_VARIANT=ora,NLTK_DATA={{ ora_nltk_data_dir }}
 
 stdout_logfile={{ supervisor_log_dir }}/%(program_name)-stdout.log
 stderr_logfile={{ supervisor_log_dir }}/%(program_name)-stderr.log