Add several commands (save config, tabs)
Add several commands (save config, tabs)

Messy commit, sorry, I can't manage to do a separate commit, it's
slightly scattered over time

It's makes history respecting config (so settings like
'history length' are took into account)

It add commands fromsol and 'w' (which is saves config)

It add commands "tab x" and "pc userno" to select x'th tab or
create a PC tab with userno

However, PC is not implemented yet.

huumanoid/xat-cli