New version 0.6.6: app edit was improved; app nc was improved + code cleanup; app...

New version 0.6.6: app edit was improved; app nc was improved + code cleanup; app sh was
updated; app webcl was improved; app zasm was improved and fixed when generating ELF
executable; app zde was improved; app zjab was improved + fixed memleak; small cleanup in
syscall.c of i386; cleanup in cache.c, small bug fixes and improvements; fixed command exec
when user-space app was closed on another then initial TTY console; added command top; file
descriptors contain path variable now; fixed user-space memory allocator heap address;
usermem.c was improved; support for random generated client's side port for TCP/UDP
protocol; longer (8 seconds) timeout on TCP connect (); fixed AF_UNIX protocol on accept ();
added virtual process for kernel because of paging; fixed proc_vmem_unmap () - wrong address
space blocks; kernel use virtual memory space from 0 to 0x800000 address; VFS use user-space
memory allocator with vfs_content_t structure for comfortable data manipulaction; fixed
czech keyboard layout; fixed FD_PIPE mask - same like O_CREATE; changes in read () / write
() / open () functions; fixed security problem in pipe.c; new version of libc with few
improvements; added missing README for zjab app