Add Zariz override module.
Merge pull request #44 from Gizra/zariz-overrides

Add "Zariz override" module.

API module to allow overriding configuration per branch.
*  Variables: zariz_override_set_override(1, 'variable', 'site_name', 'Zariz Rules');
* Views display: zariz_override_set_override(1, 'views', 'view_name:display_id', 'new_display_id');