first step of the big refactoring ("tree" branch).

From here on, we can track changes. It made no sense to put the
development up to this point into git.

include/xinerama.h

@@ -18,6 +18,6 @@
  * Xinerama information to setup workspaces for each screen.
  *
  */
-void initialize_xinerama(xcb_connection_t *conn);
+void xinerama_init();
 
 #endif