select fixes
Andy Piper writes:
I think I have fixed this to suit most people.
under mswindows the clipboard is only set/got when requested.
button2 pastes the clipboard as a fallback after primary selection and
cutbuffer.
you can optionally make the selection set the clipboard - but it is off by
default.
The namespace police officer on duty requests that
selection-is-clipboard-p be renamed one of these
selection-sets-clipboard
for greater clarity. The -p should be dropped because Emacs
predicates have a habit of accepting non-nil non-t values over
time.