Adds cdb_cartodb_server schema

server/sql/0.0.1/10_helper.sql

@@ -1,5 +1,5 @@
 -- Check if a given host is up by performing a ping -c 1 call.
-CREATE OR REPLACE FUNCTION check_host(hostname TEXT)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._check_host(hostname TEXT)
   RETURNS BOOLEAN
 AS $$
   import os
@@ -10,7 +10,7 @@ AS $$
 $$ LANGUAGE plpythonu VOLATILE;
 
 -- Returns current pwd
-CREATE OR REPLACE FUNCTION pwd()
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._pwd()
   RETURNS TEXT
 AS $$
   import os