Get rid of old hash syntax in controllers.
Get rid of old hash syntax in models.
Get rid of old hash syntax in seeds.
Fix issue when no characteristics have been provided.
Get rid of old hash syntax in views (but :devise).
Get rid of old hash syntax in devise views.
Get rid of old hash syntax in routes (where possible)
Clean up disqus task.
Clean up old dependencies, syntax etc.
Merge branch 'get-rid-of-old-ruby-syntax'
Get rid of old hash syntax in initializers and Guardfile.
Merge branch 'get-rid-of-old-ruby-syntax'