* lfbviewx: LFB viewer for X. Reads framebuffer of umka_os and displays
the picture in X window.
* New shell commands: dump_appdata, dump_taskdata, mouse_move.
* Bug with process_info is because SLOT_BASE in umka_os is not aligned
on 0x10000. Mitigated with a macro.
Use -c key for umka_shell to trace branches, no recompilation needed.
Create >4GiB file for tests.
Create empty kolibri.img and put built default.skn there.
