Description:
------------
php_sphinx.h is still defining the version as 1.1.0 in 1.2.0:

#define PHP_SPHINX_VERSION "1.1.0" 

this means following an upgrade from 1.1.0 to 1.2.0, php -i still reports that 
version 1.1.0 is installed

Test script:
---------------
with sphinx-1.1.0 installed:

php -i | grep -A1 "sphinx support"
sphinx support => enabled
Version => 1.1.0

after an upgrade to sphinx-1.2.0:

php -i | grep -A1 "sphinx support"
sphinx support => enabled
Version => 1.1.0

Expected result:
----------------
expect it to display 1.2.0

php -i | grep -A1 "sphinx support"
sphinx support => enabled
Version => 1.2.0

Actual result:
--------------
php -i | grep -A1 "sphinx support"
sphinx support => enabled
Version => 1.1.0