Adds mapview stats in the header
Adds margin in the order link
Merge branch 'develop' of github.com:CartoDB/cartodb20 into develop

* 'develop' of github.com:CartoDB/cartodb20:
  Fixed database_username function
  NEWS.md
  Fixes error on OSM loader
  Some fixes in user relocation scripts
  Improves change:schema test
  Fixes change:schema binding + adds spec