Use Logentries for log management instead of Papertrail

Ref: https://addons.heroku.com/logentries

Author: CubicApps

bin/release

@@ -8,7 +8,7 @@ addons:
   - sendgrid:starter
   - memcachier:dev
   - scheduler:standard
-  - papertrail:choklad
+  - logentries:tryit
 config_vars:
   PATH: /app/bin:/app/vendor/nginx/sbin:/app/vendor/php/bin:/app/vendor/php/sbin:/usr/local/bin:/usr/bin:/bin
   ENABLE_SYSTEM_ACCESS: false