[dev] API Interface Rewrite

[Chuck Hagenbuch]

Quoting Michael M Slusarz <slusarz at horde.org>:

> You've convinced me.  It sounds like you have some other plans for  
> this interface (should the base class be called  
> Horde_Application_Api? Horde_Application? Horde_Application_Base?  
> Horde_Registry_App?), but for now would a useful start be to move  
> those Horde-centric API calls to the new class?  It also sounds like  
> you would want to call them via something like  
> Horde_Registry::callAppMethod() (better name suggestions would be  
> great)?

I was thinking they'd be methods in Horde's api, and you'd pass the  
application to them as an argument.

-chuck