add litespeed support, fix json

3f9878d9190556d268c379ec762511d6d8479777 adds litespeed support

e269ba3a35701ec2c6506fd385ae5e5dc66d7ed4 adds json to the without_shared variable otherwise you get the warning described below

````
# you get a warning about json already being loaded unless its added to the
# without_shared variable that is used when building php55u-litespeed and
# php55u-fpm

[root@test]$ rpm -q php55u
php55u-5.5.1-2.ius.el6.x86_64
[root@test]$ php -v
PHP 5.5.1 (cli) (built: Jul 31 2013 10:48:32) 
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
[root@test]$ php-fpm -v
[31-Jul-2013 10:51:12] NOTICE: PHP message: PHP Warning:  Module 'json' already loaded in Unknown on line 0
PHP 5.5.1 (fpm-fcgi) (built: Jul 31 2013 10:48:58)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
[root@test]$ php-ls -v
PHP Warning:  Module 'json' already loaded in Unknown on line 0PHP 5.5.1 (litespeed) (built: Jul 31 2013 10:49:31)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
[root@test]$ 
[root@test]$ 


# after adding it to the without_shared variable, the warning disappears
[root@test]$ rpm -q php55u
php55u-5.5.1-3.ius.el6.x86_64
[root@test]$ php -v
PHP 5.5.1 (cli) (built: Jul 31 2013 12:39:04) 
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
[root@test]$ php-fpm -v
PHP 5.5.1 (fpm-fcgi) (built: Jul 31 2013 12:39:30)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
[root@test]$ php-ls -v
PHP 5.5.1 (litespeed) (built: Jul 31 2013 12:39:53)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
[root@test]$ 
````