message: align store ts interface
diff: @@ -83,17 +83,17 @@ export interface IDocumentStore extends IDisposable,
  /**
  * Opens document session
  */
  - openSession(database?: string, options?: SessionOptions): IDocumentSession;
  + openSession(options: SessionOptions): IDocumentSession;
  /**
  * Opens document session
  */
  - openSession(options?: SessionOptions): IDocumentSession;
  + openSession(database: string): IDocumentSession;
  /**
  * Opens document session
  */
  - openSession(database?: string): IDocumentSession;
  + openSession(): IDocumentSession;
  /**
  * Subscribe to change notifications from the server
  