Fixed problem when user imports a url from a link and button appears disabled when it should be enabled to 'hide' the importation
Merge branch 'CDB-3685' of github.com:CartoDB/cartodb into CDB-3685
Add layer changes checking ok button behaviour
Merge branch 'CDB-3685' of github.com:CartoDB/cartodb into CDB-3685
Merge branch 'CDB-3685' of github.com:CartoDB/cartodb into CDB-3685