Test
Simplifies share_map_dialog code
Removed old template
Fixes short url generation
Improves render_content method
Merge branch '2.1' of github.com:CartoDB/cartodb20 into 2.1

* '2.1' of github.com:CartoDB/cartodb20:
  added new icons sprite + specs for header options menu fixed
  header for 2.1 changed
  fixed table loading at the beginning
  4 spaces -> 2 spaces
  use table name to get the table
Adds layer_selector
Adds layer_selector
Merge vis.js
Fixes specs for the share dialog
Improves test hierachy
Merge changes