Adds paginator dropdown
Activates pagination
Merge branch 'develop' of github.com:CartoDB/cartodb20 into develop

* 'develop' of github.com:CartoDB/cartodb20:
  cartodb layer sql functions added + tests
  check if table is in sql view to avoid showing up the no-georef-data
  sprite generated
  Clean up
  Track relationships between layers and user_tables
Removes console.log