Log Message:
Update to 2.25.1

Changelog:
wed, 07 Mar 2018 17:49:52 +0100  Daniel Friesel <derf+feh@finalrewind.org>

* Release v2.25.1
    * Fix compilation issues when using CFLAGS=-m64 on some gcc versions
    * Re-render current image when toggle_fixed_geometry is input

Sun, 04 Mar 2018 08:53:50 +0100  Daniel Friesel <derf+feh@finalrewind.org>

* Release v2.25
    * Add --version-sort option to enable natural sorting of file and directory
      names. This requires a libc with strverscmp support, which is a
      non-POSIX GNU extension. Use the new build flag `verscmp=0` to disable
      this feature on systems which do not ship strverscmp
      (patch by ulteq)
    * Allow arbitrary X11 colors as -B/--image-bg argument (patch by ulteq)
    * Improve --image-bg support and transparency handling in --bg-* mode
    * Respect --geometry settings in --bg-fill mode
    * Add keybinding toggle_auto_zoom (default "Z") to toggle --auto-zoom
    * Fix filelists specified by -f/--filelist not being reloaded when using
      --reload

Mon, 26 Feb 2018 21:41:38 +0100  Daniel Friesel <derf+feh@finalrewind.org>

* Release v2.24
    * Improve performance when using --{max,min}-dimension in slideshow mode
      (patch by ulteq)
    * Fix crash when using %m format specifier in slideshow mode
      (introduced in feh 2.23.1)

Mon, 12 Feb 2018 22:11:55 +0100  Daniel Friesel <derf+feh@finalrewind.org>

* Release v2.23.2
    * Fix support for nested quotes in .confeg/feh/themes

Wed, 31 Jan 2018 17:38:25 +0100  Daniel Friesel <derf+feh@finalrewind.org>

* Release v2.23.1
    * The Makefile no longer honors CPPFLAGS and instead consistently uses
      CFLAGS for user-provided include paths
    * Fix %u format specifier in multiwindow and list modes (patch by ulteq)
    * Minor performance improvements (patches by ulteq)
    * Stability improvements when using --magick-timeout (patch by ulteq)

Thu, 28 Dec 2017 19:26:29 +0100  Daniel Friesel <derf+feh@finalrewind.org>

* Release v2.23
    * Fix broken thumbnail/index windows when using --scale-down
    * Use Imlib2 in-memory image cache (default cache size: 4MiB). This allows
      for significant performance improvements especially in small slideshows
    * Add --cache-size option to set Imlib2 image cache size