Fixed backtick bug.

The parser added an extra (and unnecessary) `</code>` at the end of the
HTML result when the Markdown data contained an even number of backticks.

mmd.js

@@ -20,7 +20,7 @@ function markdown(src) {
 					.replace(/([^;["])(https?:\/\/([^\s("&]+\.[^\s("&]+))/g, '$1' + '$3'.link('$2'))
 					.replace(/^(https?:\/\/([^\s("&]+\.[^\s("&]+))/g, '$2'.link('$1'))
 					.replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>')
-					.replace(/\*([^*]+)\*/g, '<em>$1</em>') + (i == arr.length - 1 && i != 0 ? '</code>' : '');
+					.replace(/\*([^*]+)\*/g, '<em>$1</em>');
 			}
 		}).join('');
 	}