Updates to env variables for logging (#309)

* Updates to env variables for logging

* Added not_found template to application

sample.env

@@ -105,3 +105,22 @@ RELATIVE_URL_ROOT=/b
 # A URL to the image you want to appear in the top right corner of Greenlight.
 # By default, this is the BigBlueButton logo.
 BRANDING_IMAGE=
+
+# Comment this out to send logs to STDOUT in production instead of log/production.log .
+#
+# RAILS_LOG_TO_STDOUT=true
+#
+# When using docker-compose the logs can be sent to an external service like PaperTrail
+# just by using the built in driver. Make sure to add to docker-compose.yml the next lines:
+#
+#     logging:
+#      driver: syslog
+#      options:
+#        syslog-address: "tcp+tls://logs4.papertrailapp.com:[99999]"
+#        tag: greenlight.mydomain.com:v2
+#
+
+# Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+# It is disabled by default.
+#
+# ENABLE_SSL=true