Adds new header shadow, tag editor, table & map view tabs and back icon.
Rebuild sprites
Merge branch 'develop' of github.com:CartoDB/cartodb20 into develop

* 'develop' of github.com:CartoDB/cartodb20:
  choosing options when creates a new table should be working properly now
  fixed with of the url input when wants to import a file
  fixed #1456
  'copy this' button updated to wait until there's an url to assign its data
  again new cdb version applied
  new cdb version applied
  bitly shortening of share urls and tab order change
  added 'search' method to look for a value
  copy&paste permitted in 'start importing some data' #1440
Updates tag editor