set scheme to host user when public user is accessing
Updates CDB_QueryTables to match the one from the extension. Fixes some tests to show the schema presence.
Skip some tests that we need to review because with the current implementation of CDB_QueryTables dont make sense.
CDB_QueryTables should be used from the extension as a dependency.
fixed problem when a query raised a database error
Removes the call to set the search path as it should get the correct public user from redis
Some style changes
Changes authentication to start using public user if it is defined in redis.
Sets database host in redis test database
Fixing version in shrinkwrap
Merge branch 'master' of https://github.com/CartoDB/CartoDB-SQL-API into multiuser

Conflicts:
	app/controllers/app.js