Incorrect case in install file.

Checking out from CVS gives 'Config.php' instead of 'config.php'. Small patch to fix it.

Index: shindig_integrator.install
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/ShindigIntegrator/shindig_integrator/shindig_integrator.install,v
retrieving revision 1.2.2.1
diff -b -r1.2.2.1 shindig_integrator.install
300c300
<   $config_file = "$path_shindig/shindig/php/src/common/config.php";
---
>   $config_file = "$path_shindig/shindig/php/src/common/Config.php";
384c384
<   $config_file = "$path_shindig/shindig/php/src/common/config.php";
---
>   $config_file = "$path_shindig/shindig/php/src/common/Config.php";