Fixed pacman source code - there was static adddress for image instead of malloc...

Fixed pacman source code - there was static adddress for image instead of malloc what cause segfault; fixed image
loading - memory corruption in pacman; small improvements in ZDE; added system call sys_getpid () - 53; command exec
was improved - when vfs_read return error it go out from command; vfs_read () function return error when READ action
fails; ZNFS filesystem was improved - file transfer from remote machine to local should work without errors;