turn subdomain listings off by default in dev env

lms/envs/dev.py

@@ -15,7 +15,7 @@ TEMPLATE_DEBUG = True
 
 MITX_FEATURES['DISABLE_START_DATES'] = True
 MITX_FEATURES['ENABLE_SQL_TRACKING_LOGS'] = True
-MITX_FEATURES['SUBDOMAIN_COURSE_LISTINGS'] = True
+MITX_FEATURES['SUBDOMAIN_COURSE_LISTINGS'] = False  # Enable to test subdomains--otherwise, want all courses to show up
 MITX_FEATURES['SUBDOMAIN_BRANDING'] = True
 
 WIKI_ENABLED = True
@@ -107,7 +107,7 @@ LMS_MIGRATION_ALLOWED_IPS = ['127.0.0.1']
 MITX_FEATURES['AUTH_USE_OPENID'] = True
 MITX_FEATURES['BYPASS_ACTIVATION_EMAIL_FOR_EXTAUTH'] = True
 
-INSTALLED_APPS += ('external_auth',) 
+INSTALLED_APPS += ('external_auth',)
 INSTALLED_APPS += ('django_openid_auth',)
 
 OPENID_CREATE_USERS = False