vendor dependencies with dep

vendor/github.com/go-pg/pg/orm/relation.go

@@ -0,0 +1,23 @@
+package orm
+
+import "github.com/go-pg/pg/types"
+
+const (
+	HasOneRelation = 1 << iota
+	BelongsToRelation
+	HasManyRelation
+	Many2ManyRelation
+)
+
+type Relation struct {
+	Type        int
+	Polymorphic bool
+	Field       *Field
+	JoinTable   *Table
+	FKs         []*Field
+
+	M2MTableName  types.Q
+	M2MTableAlias types.Q
+	BasePrefix    string
+	JoinPrefix    string
+}