move utf8 decl. to utf8.h

move ui decl. to ui.h

move declarations to minibuffer.h

move minibuffer-related fns to their own file and a bit of foreshadowing... :)

rename minibuf to echoarea there's a close relationship between the echoarea and the minibuffer, but let's call it echoarea for now.

initialize the keys before reading the configuration

move the argv handling back into the main()

bugfix: print the trailing face until the right column This would leave the last column white if !olivetti-mode and a background color for some body lines

fix two related bug Don't crash when there's a certificate mismatch and after saving the cert, before choosing to persist it, the page gets redirected; also, don't repeat the "Certificate mismatch" after the first yes, if there's a redirect. Now when the user accept a certificate, is treated as temporary saved for the whole session.

fix top_line/current_line wrt L_HIDDEN this fixes some infinite loops that may happen if the first line is hidden, or things happens. The idea is to move the line forward/backward until a non-hidden one is found.

add support for hidden lines; push-button now toggle pre blocks

retire restore_cursor and the force-redraw optimization (for now) don't consider restore_cursor as a public interface and while there rename it as restore_curs_x, as it describes better the behaviour of the function. I have to disable the buffer->force-redraw optimization, at least from now, given that cmd.c don't update curs_y anymore, and with that optimisation in place the cursor y position doesn't get updated upon redraw. Add a comment as a future note though.

drop unnecessary restore_cursor calls

restore early, restore often

handle the resize better Try to preserve as much as possible the current_line and top_line during wrap_page. In redraw_window recompute the correct y position.