* faq-setup.xml: Minor snapshot instruction rewording.  Update discussion about
setup*.exe.
* faq-using.xml: Update information about setup*.exe.
* faq-what.xml: Ditto.
* fhandler.h (cltype): Add cl_buf_beg, cl_buf_end.
* fhandler_console.cc (dev_console::console_attrs::set_cl_x): Honor buffer
locations.
(dev_console::console_attrs::set_cl_y): Ditto.
(fhandler_console::write): On reset, use absolute positioning to go to
beginning of buffer.  Clear entire buffer.
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