Added schema to server functions and fixed some errors

server/extension/sql/0.0.1/10_helper.sql

@@ -1,5 +1,5 @@
 -- Get values_json for provided key from conf table
-CREATE OR REPLACE FUNCTION _get_conf(_key TEXT)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._get_conf(_key TEXT)
   RETURNS text
 AS $$
 DECLARE

server/extension/sql/0.0.1/20_geocode_street.sql

@@ -1,5 +1,5 @@
 -- Geocodes a street address given a searchtext and a state and/or country
-CREATE OR REPLACE FUNCTION geocode_street(searchtext TEXT, city TEXT DEFAULT NULL, state_province TEXT DEFAULT NULL, country TEXT DEFAULT NULL)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server.geocode_street(searchtext TEXT, city TEXT DEFAULT NULL, state_province TEXT DEFAULT NULL, country TEXT DEFAULT NULL)
   RETURNS Geometry
 AS $$
   import json
@@ -19,4 +19,4 @@ AS $$
   point = plpy.execute(plan, [coordinates[0], coordinates[1]], 1)[0]
 
   return point['st_setsrid']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpythonu;

server/extension/sql/0.0.1/30_admin0.sql

@@ -1,6 +1,6 @@
 -- Interface of the server extension
 
-CREATE OR REPLACE FUNCTION geocode_admin0_polygons(user_id name, tx_id bigint, country_name text)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server.geocode_admin0_polygons(user_id name, tx_id bigint, country_name text)
 RETURNS Geometry AS $$
     plpy.debug('Entering geocode_admin0_polygons')
     plpy.debug('user_id = %s' % user_id)
@@ -26,7 +26,7 @@ $$ LANGUAGE plpythonu;
 
 -- Implementation of the server extension
 -- Note: these functions depend on the cdb_geocoder extension
-CREATE OR REPLACE FUNCTION _geocode_admin0_polygons(country_name text)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._geocode_admin0_polygons(country_name text)
 RETURNS Geometry AS $$
   DECLARE
     ret Geometry;