By Douglas Gillison and Ross Kerber NEW YORK / BOSTON, Dec 2 (Reuters) - Wall Street's chief regulator said on Tuesday the U.S. Securities and ​Exchange Commission should reform rules requiring disclosure of executive compensation and move to reduce the legal burdens facing ‌smaller companies. In an address at the New York Stock Exchange billed as a statement of his vision for the future of capital markets, ‌SEC Chair Paul Atkins also previewed major themes in the agency's deregulatory policy agenda. Si ...