Interfaces must be registered after spice_server_init().
The "next" callback is used to discover interfaces
registered before spice_server_init(). Which is a empty
list and thus pretty pointless. Remove it.
Surface creation now specifies the exact format, not only the bit depth
of each surface which is used for rendering.
Additionally we now actually store the surfaces in that format, instead
of converting everything to 32bpp when drawing or e.g. handling palettes.
The new command return dirty area to be used
by users that want spice to render localy or
into some framebuffer (sdl / vnc)
Signed-off-by: Izik Eidus <ieidus@redhat.com>
