Changes H1 for a div (SEO)
first change for wms basemap pane
Merge branch 'master' into CDB-2723
CDB-2723 #resolve - New wms service working
Merge branch 'UserQuotaFunction' of https://github.com/strk/cartodb into CDB-2893
CDB-2951 threaded some heavy user-related rakes
CDB-2951 more threaded + some style cleaning
Merge branch 'master' into CDB-2893
Merge branch 'master' into CDB-2723
CDB-2893 Ongoing add of user_id to visualization model. Unfinished, this will break for sure
Merge branch 'master' into CDB-2893
Upgrade lib/sql to latest cartodb-postgresql master

Changes affecting current cartodb:

 - Remove CDB_SearchPath.sql from the set of scripts loaded directly
   Closes #466
 - Do not call CDB_Invalidate_Varnish() if not owned by a superuser

Other changes:

 - Migrate user quota on cartodb extension creation from unpackaged
 - Complain if script is sourced in psql, rather than via CREATE EXTENSION
 - Refuse to create new extension if legacy code is present on database
 - Fix extension requires directive
CDB-2893 Added user_id on vis creation and more code cleaning. Still ongoing but things should be more stable
CDB-2723 #resolve - new wms service integrated
CDB-2723 #resolve - all WMS layers are valid
CDB-2893 more fixes and safety checks
CDB-2893 added validation check + spec
CDB-2968 Creating branch with just redundant code removal
fixed import form data CDB-2964
CDB-2968 Duplicate and old code removed, calling cartodbfy