Adds translation for the Disqus comments placeholder.
Update gems.
Removes redundant directive from Gemfile.
Adds pre-defined categories to Experiences.
Adds #categories_names to Experience.
Shows categories on #show.
Rake task for creating basic categories.
So we can do category.experiences and shit.
[partial] Shows categories.
[worst] Faceted search.
[dull] Refactoring.