Fix parser error that made it ignore the last line

src/Program/ProgramParser.php

@@ -61,7 +61,7 @@ class ProgramParser
 		}
 		$program = new Program($firstWord->value);
 		$lineBuffer = null;
-		foreach ($words as $word) {
+		while ($word = array_shift($words)) {
 			if ($word->register === 'N') {
 				if (!is_null($lineBuffer)) {
 					$program->addBlock($lineBuffer);
@@ -71,6 +71,9 @@ class ProgramParser
 			}
 			$lineBuffer->addWord($word);
 		}
+		if (!is_null($lineBuffer)) {
+			$program->addBlock($lineBuffer);
+		}
 
 		return $program;
 	}