Setup custom screens by extending CIX_Loader

If a client requests to have a screen modified from your default set of
views, you can define a 'custom screens' folder in the views directory
to basically 'override' the default screens.  If you have multiple
clients running the same application on the same server, you can set an
identifier for each client to have their own custom screens.  If you
want all clients on the same server to use the same custom screens, you
can create a single custom screen and put it in the 'custom/all' folder.

The order of precedence in which a custom screen will be loaded is as
follows:

Client-specific->All-specific->Default views
Created a settings/config.php for custom screens