By ALEXANDER MARTIN REMOLLINO Bulatlat Silage Choppers & Snake Spirits By Dao-yuan Chou Edited by Juliet de Lima-Sison Published by IBON Foundation Inc. 466 pages MANILA — The new book Silage Choppers & Snake Spirits by Dao-yuan Chou could not have burst upon the Philippine scene at a more appropriate time. “This year, 2009, would…