Update postgres dependency.

dbconf.go

@@ -3,7 +3,7 @@ package main
 import (
 	"flag"
 	"fmt"
-	"github.com/bmizerany/pq"
+	"github.com/lib/pq"
 	"github.com/kylelemons/go-gypsy/yaml"
 	"os"
 	"path/filepath"

migrate.go

@@ -4,7 +4,7 @@ import (
 	"database/sql"
 	"errors"
 	"fmt"
-	_ "github.com/bmizerany/pq"
+	_ "github.com/lib/pq"
 	_ "github.com/ziutek/mymysql/godrv"
 	"log"
 	"os"

migration_go.go

@@ -76,7 +76,7 @@ package main
 
 import (
 	"database/sql"
-	_ "github.com/bmizerany/pq"
+	_ "github.com/lib/pq"
 	"log"
 	"fmt"
 )