Use mail settings from application.yml
Add internal mail sender.
Fix link in email.
Cleanup deploy.rb.
Fix email text.
Merge pull request #1 from CyTeam/chores/takeover-cleanups

Takeover cleanups
Add rails 4 files.
Move navigation to standard path and remove initializer.
Remove unnessecary initializers.
Add neccesary paths to application.rb.
Bring dossiers and topics back to work, except for nested container add link.
Fix show/hide keyword links.
Fix mostly simple controllers and models.
Fix report stuff, except for preview action.
Fix versioning.
Remove utf-8 comments.
Remove empty helper files.
Remove capone_recipes gem.
Let rubocop autofix some stuff.
Update forgotten schema.rb file.