Remove trailing ?> in PHP library files, add trailing newlines to all other files.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1253 48356398-32a2-884e-a903-53898d9a118a

benchmarks/Lexer.php

@@ -165,4 +165,4 @@ echo '<div>Random input was: ' .
 ?>
 
 
-</body></html>
+</body></html>

benchmarks/ProfileDirectLex.php

@@ -15,5 +15,3 @@ $context = new HTMLPurifier_Context();
 for ($i = 0; $i < 10; $i++) {
     $tokens = $lexer->tokenizeHTML($input, $config, $context);
 }
-
-?>