Fix typo in comment
Remove --blocksize option
Rename --read to --dump and add --dump-sram
Implement --restore-sram option
Rename --bank to --page and make --page mandatory

for write/restore-sram/dump/dump-sram/format
Remove --rom and --sram
Rename --title to --list

If --page is specified, will list only this page otherwise
will list both pages
Adapt --write to handle also just one ROM

Now, --restore is used to copy an entire file to a page
Fix minor bugs
Arrange some expressions to avoid integer overflows
Document new syntax  and change the tool name