Merge pull request #15 from eduardopoleo/master

Fixed issues
Corrected redirections and wired users activities
Display users number only if present
Binding.pry not working
Merge remote-tracking branch 'upstream/master' into add_faceted_search
Added faceted search for brand and carrier
Corrected irreversible migrations, added condition model
Implemented condition facet
Added fabrication and faker gem for quicker seeding
Added link to navigation and user information to ad/show page
Removed cloudinary and added uploadcare
Merge pull request #17 from guvarallo/pictures

Pictures
resolved conflicts
resolved conflicts