Restore search ability for replies

When we sacked the scope search facets and rely on rootScope.annotations the replies were no longer tested as possible search results. It is now restored.
Add production.ini and strip down development.ini

The Procfile now uses production.ini which should use a set of sane
defaults and includes more comments to explain what's going on.
Add support mail settings from environment
Prefer environment variable for ES connection
document docker links
support DATABASE_URL env variable