Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/

README.ijg

Index: README.ijg
diff --git a/README b/README.ijg
similarity index 91%
copy from README
copy to README.ijg
index 91008698582c7a7ec6be1d9bc686350a0790d202..9c450ceb07ce9a43325e6524b0b2da017fea8db3 100644
--- a/README
+++ b/README.ijg
@@ -1,7 +1,7 @@
 libjpeg-turbo note:  This file has been modified by The libjpeg-turbo Project
 to include only information relevant to libjpeg-turbo, to wordsmith certain
 sections, and to remove impolitic language that existed in the libjpeg v8
-README.  It is included only for reference.  Please see README-turbo.txt for
+README.  It is included only for reference.  Please see README.md for
 information specific to libjpeg-turbo.
 
 
@@ -36,7 +36,6 @@ TO DO               Plans for future IJG releases.
 Other documentation files in the distribution are:
 
 User documentation:
-  install.txt       How to configure and install the IJG software.
   usage.txt         Usage instructions for cjpeg, djpeg, jpegtran,
                     rdjpgcom, and wrjpgcom.
   *.1               Unix-style man pages for programs (same info as usage.txt).
@@ -48,9 +47,9 @@ Programmer and internal documentation:
   structure.txt     Overview of the JPEG library's internal structure.
   coderules.txt     Coding style rules --- please read if you contribute code.
 
-Please read at least the files install.txt and usage.txt.  Some information
-can also be found in the JPEG FAQ (Frequently Asked Questions) article.  See
-ARCHIVE LOCATIONS below to find out where to obtain the FAQ article.
+Please read at least usage.txt.  Some information can also be found in the JPEG
+FAQ (Frequently Asked Questions) article.  See ARCHIVE LOCATIONS below to find
+out where to obtain the FAQ article.
 
 If you want to understand how the JPEG code works, we suggest reading one or
 more of the REFERENCES, then looking at the documentation files (in roughly
@@ -62,7 +61,7 @@ OVERVIEW
 
 This package contains C software to implement JPEG image encoding, decoding,
 and transcoding.  JPEG (pronounced "jay-peg") is a standardized compression
-method for full-color and gray-scale images.  JPEG's strong suit is compressing
+method for full-color and grayscale images.  JPEG's strong suit is compressing
 photographic images or other types of images that have smooth color and
 brightness transitions between neighboring pixels.  Images with sharp lines or
 other abrupt features may not compress well with JPEG, and a higher JPEG
@@ -129,7 +128,7 @@ with respect to this software, its quality, accuracy, merchantability, or
 fitness for a particular purpose.  This software is provided "AS IS", and you,
 its user, assume the entire risk as to its quality and accuracy.
 
-This software is copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
+This software is copyright (C) 1991-2016, Thomas G. Lane, Guido Vollbeding.
 All Rights Reserved except as specified below.
 
 Permission is hereby granted to use, copy, modify, and distribute this
@@ -167,11 +166,11 @@ ltmain.sh).  Another support script, install-sh, is copyright by X Consortium
 but is also freely distributable.
 
 The IJG distribution formerly included code to read and write GIF files.
-To avoid entanglement with the Unisys LZW patent, GIF reading support has
-been removed altogether, and the GIF writer has been simplified to produce
-"uncompressed GIFs".  This technique does not use the LZW algorithm; the
-resulting GIF files are larger than usual, but are readable by all standard
-GIF decoders.
+To avoid entanglement with the Unisys LZW patent (now expired), GIF reading
+support has been removed altogether, and the GIF writer has been simplified
+to produce "uncompressed GIFs".  This technique does not use the LZW
+algorithm; the resulting GIF files are larger than usual, but are readable
+by all standard GIF decoders.
 
 We are required to state that
     "The Graphics Interchange Format(c) is the Copyright property of
@@ -190,8 +189,8 @@ The best short technical introduction to the JPEG compression algorithm is
 	Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44.
 (Adjacent articles in that issue discuss MPEG motion picture compression,
 applications of JPEG, and related topics.)  If you don't have the CACM issue
-handy, a PostScript file containing a revised version of Wallace's article is
-available at http://www.ijg.org/files/wallace.ps.gz.  The file (actually
+handy, a PDF file containing a revised version of Wallace's article is
+available at http://www.ijg.org/files/Wallace.JPEG.pdf.  The file (actually
 a preprint for an article that appeared in IEEE Trans. Consumer Electronics)
 omits the sample images that appeared in CACM, but it includes corrections
 and some added material.  Note: the Wallace article is copyright ACM and IEEE,
@@ -247,9 +246,7 @@ ARCHIVE LOCATIONS
 
 The "official" archive site for this software is www.ijg.org.
 The most recent released version can always be found there in
-directory "files".  This particular version will be archived as
-http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible
-"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip.
+directory "files".
 
 The JPEG FAQ (Frequently Asked Questions) article is a source of some
 general information about JPEG.