Added license to a number of files

More work on Desktop and DesktopClasses
minor API tweak to DisplayDriver
Added conditional compilation stuff to AppServer.cpp for debugging purposes
TokenHandler now uses BLockers instead of semaphores for locking
Can now run the server and see something


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2717 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/server/Desktop.cpp

@@ -27,6 +27,7 @@
 #include "DisplayDriver.h"
 #include "Desktop.h"
 #include "DesktopClasses.h"
+#include "ServerConfig.h"
 
 #include "ViewDriver.h"
 
@@ -112,7 +113,7 @@ void InitDesktop(void)
 		// TODO: figure out how to load the workspace data and do it here.
 		// For now, we'll just use 3 workspaces.
 		
-		Screen *s=new Screen(tdriver,3);
+		s=new Screen(tdriver,3);
 		desktop_private::screenlist->AddItem(s);
 	}
 	else
@@ -292,7 +293,7 @@ screen_id ActiveScreen(void)
 */
 DisplayDriver *GetGfxDriver(screen_id screen=B_MAIN_SCREEN_ID)
 {
-	return NULL;
+	return (desktop_private::activescreen)?desktop_private::activescreen->GetGfxDriver():NULL;
 }
 
 /*!