so do_research will succeed without needing to manually load the last seach in.  Fixes
          bug reported by Matt "ML" at gmail.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4531 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * New saved cursor position history option.  Command line option -P or --poslog, rc file
          entry "poslog".  Search history changes to ~/.nano/search_history, cursor position log
          is ~/.nano/filepos_history.  Added checks to move the legacy .nano_history file to the new
          location.  Several new functions to files.c: load_poshistory(), save_poshistory(),
          check_poshistory(), update_poshistory(), and reworking of histfilename().  New FAQ entry
          4.15 discussing the change and offering an interoperability workaround.



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        * Initial libmagic implementation, adapted from Eitan Adler <eitanadlerlist@gmail.com>.
          New nanorc entry "magic" to enable this functionality, nanorc file and man page updates.



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          This does add 20KB to nano's executable size but it gets rid of a lot of indirection
          that makes people stomach turn.  There are several new stub functions and need of more
          tidying as a result of this.



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	* files.c (write_file) - Fix problems with writing the backup file (albeit interactively)
	  with new function prompt_failed_backupwrite(), allows more secure handling of problems
	  with failing to write the backup file compared to 'allow_insecure_backup'.
	* winio.c (edit_redraw): Removed unused variable



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        * Add a section to the FAQ about using nanorc on Win32 systems.



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        * Add check for RESTRICTED mode back to speller, suspend and insert file
          routines, since adding key bindings broke the fact that they should be
          disabled in restricted mode.  Fixes Savannah bug 31625 reported by
          Charlie Somerville.



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        * doc/syntax/mgp.nanorc: New Magicpoint syntax highlighting definition



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	* doc/syntax/tex.nanorc: No longer highlight escaped comments



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Add more inseure backup checks to that strange cases like with ACLs will work with allow_insecure_backup.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4509 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * New option allow_insecure_backup, allows the previous security
          fixes for backup files to be overridden if you're really positive
          you want to.  Fixes Savannah bug 29732 by Brian Szymanski <skibrianski>.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4508 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * files.c (write_file): Don't even try to chown() the backup
          file unless we're root, since it's probably going to fail if
          we're editing a file we don't own.  Fixes Savannah bug
          29514: [nano 2.2.2] backup should ignore chown errors.



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        * doc/man/nano.1,nanorc.5: Remove the backup file warnings now
          that a sufficient security fix exists for the backup file code.



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        * files.c (wirte_file): Don't set current_stat when tmp == TRUE, check
          whether current_stat is set when trying to use it, and don't do the
          modification check if the filename changed, since we have no way
          of knowing about it in that case.  Fixes Savannah bug 29392, reported
          by Mike Frysinger.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4500 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * text.c (do_alt_speller): Skip invoking the alt speller if the file size
          is 0 bytes.  Fixes Savannah bug 29393 reported by Mike Frysinger.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4499 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * doc/syntax/cmake.nanorc: Added cmake syntax highlighting file.



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        * files.c (do_writeout): Better security fixes for backup file writing, 
          mangled from submission by Dan Rosenberg <dan.j.rosenberg at gmail>.



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        * files.c (do_writeout): Previous fixes should not cause a crash
          when saving a new file.  Discovered by Mike Frysinger <vapier@gentoo.org>.



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        * doc/man/nano.1,nanorc.5: Add warnings about using backup 
          mode as root due to the Dan Rosenberg security analysis.



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          file when its owner doesn't match the edited file.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4491 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * files.c (do_writeout): Expand modification check to include both the
          original file's device ID and inode number as reasons to warn the
          user that the file has been modified.  Based on security article on nano
          by Dan Rosenberg.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4490 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * nano.c (page_stdin et al): Don't attempt to reset/reopen the terminal
          settings when reading stdin if it was aborted with SIGINT.  May fix Savannah
          bug 29114 reported by  Mike Frysinger.



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        * doc/syntax/c.nanorc: Add additional support for #include_next and #pragma



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	  smooth scroll mode, as previous fixes would otherwise cause the cursor to not
	  really be moved to the stop of the screen.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4485 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * configure.ac, nano.c (handle_sigwinch): Create check for whether LINES and
          COLS can safely be redefined.  Fixes compilation issues with cygwin, and likely
          with newer versions of ncurses, fixes Savannah bug 28984 repoted by Andy Koppe
          and Eric Oliver via mailing list.
        * winio.c (get_mouseinput) - fix stray semicolon in code, also reported in
          bug 28984.



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        * move.c (do_page_up, do_page_down): Fix for smooth mode not preserving cusor
          position.  Part one of fix for Savannah bug 21178 by Mike Frysinger.



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