Merge pull request sequelize#476 from tzellman/feature/add-findByPk-to-model

added findByPk method to the Model

Author: RobinBuschmann

lib/models/Model.d.ts

@@ -224,6 +224,8 @@ export declare abstract class Model<T extends Model<T>> extends Hooks {
  */
  static findById<T extends Model<T>>(this: (new () => T), identifier?: number | string, options?: IFindOptions<T>): Promise<T | null>;
 
+ static findByPk<T extends Model<T>>(this: (new () => T), identifier?: number | string, options?: IFindOptions<T>): Promise<T | null>;
+
  static findByPrimary<T extends Model<T>>(this: (new () => T), identifier?: number | string, options?: IFindOptions<T>): Promise<T | null>;
 
  /**