Multiple windows saving

[Vladimir Prus]

KDevelop now saves a position of its window, when there's one
window. I've tried to test if KDevelop would restore two
windows, if they were open on exit, but I've run into
a fundamental issue -- I cannot exit when there are two windows
shown -- the "Quit" command in menu will exit only the current
window. 

Should there be some "Really quit all windows" command, that
would restore the number of position of all windows, so that
they are restored on next start?

- Volodya