CDB-2920 reactivating SQL-based cartodbfication
Merge pull request #465 from CartoDB/CDB-2920

Tested last week, no need to wait for travis
CDB-2958 rake created & tested in dev
Merge pull request #467 from CartoDB/CDB-2958

Tested in dev & Travis won't test it...
Merge branch 'master' into CDB-2893
CDB-2893 Added user_id on vis creation and more code cleaning. Still ongoing but things should be more stable