Log Message:
imlib2: Update to 1.7.1

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*** Version 1.7.1 ***
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Daniel Kolesa (1):
      Fix big endian build

Kim Woelders (6):
      rend.c: Fix __imlib_generic_render() when jump != 0
      grab.c: Support 30bpp display in __imlib_GrabXImageToRGBA()
      WEBP loader: Add initial signature check
      XPM loader: Get transparency right when doing header-only loading
      Silence a couple of sign-compare warnings
      1.7.1