Merge pull request #1 from NuckChorris/master

Add environment variables for dropbox key and secret
Add forum-static.hummingbird.me for the forums.
Forward forum-static to varnish from nginx.
Rearrange default.vcl vcl_recv.
Install additional packages.
Attempt to fix varnish cache.
Fix images.
Fix forum varnish.
increment ruby version
Reduce monit poll interval to 30.
Forward X-Forwarded-Proto header to Unicorn.
Setup ELK.
Update logstash template.
Get rid of elasticsearch proxying.
Run logstash using monit.
ember-cli stuff.