Fix short php tags.

I was getting an error because by default Ubuntu doesn't have short tags enabled for php5.

[Tue Jun 03 18:21:44.675414 2014] [:error] [pid 5444] [client 127.0.0.1:40289] PHP Parse error:  syntax error, unexpected end of file in /var/www/html/tsugi/lib/lms_lib.php on line 1692