Add setting for technical support email config

Configure the technical support email address in the settings so that
themes can override with an email of their own in the appropriate
env.json file in production.

lms/envs/aws.py

@@ -121,6 +121,7 @@ DEFAULT_FROM_EMAIL = ENV_TOKENS.get('DEFAULT_FROM_EMAIL', DEFAULT_FROM_EMAIL)
 DEFAULT_FEEDBACK_EMAIL = ENV_TOKENS.get('DEFAULT_FEEDBACK_EMAIL', DEFAULT_FEEDBACK_EMAIL)
 ADMINS = ENV_TOKENS.get('ADMINS', ADMINS)
 SERVER_EMAIL = ENV_TOKENS.get('SERVER_EMAIL', SERVER_EMAIL)
+TECH_SUPPORT_EMAIL = ENV_TOKENS.get('TECH_SUPPORT_EMAIL', TECH_SUPPORT_EMAIL)
 
 #Theme overrides
 THEME_NAME = ENV_TOKENS.get('THEME_NAME', None)

lms/envs/common.py

@@ -318,6 +318,7 @@ EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
 DEFAULT_FROM_EMAIL = 'registration@edx.org'
 DEFAULT_FEEDBACK_EMAIL = 'feedback@edx.org'
 SERVER_EMAIL = 'devops@edx.org'
+TECH_SUPPORT_EMAIL = 'technical@edx.org'
 ADMINS = (
     ('edX Admins', 'admin@edx.org'),
 )