Allows sorting by tables and visualizations
Merge branch 'develop' of github.com:CartoDB/cartodb20 into develop

* 'develop' of github.com:CartoDB/cartodb20:
  Make Table.multiple_order spec more resilient
  Add name uniqueness validation in Visualization::Member
  new spec for mapview
  new specs for mapview -> adding new feature
  add new feature in mapview done
  removed unnecessary openRightMenu function from table.js
  removed unnecessary visualization router
  removed blank space from visualization base dialog file + more actions menu specs added
  refactor vis url redirect
  Add non-conventional model paths to rails autoload in development environment
  refactoring vis duplication
  Add specs for embed_map_error cases in visualization HTML endpoint
  added new spec for layer panel
  new cdb version updated
  moved name visualization dialog to dashboard