Merge tag '2.1.5'

* tag '2.1.5': (41 commits)
  BUILDING.md: Specify install prefix for MinGW/Un*x
  Java: Guard against int overflow in size methods
  turbojpeg.c: Fix UBSan warning
  tjPlane*(): Guard against int overflow
  Java doc: TJ.pixelSize --> TJ.getPixelSize()
  TJBench: Unset TJ*OPT_CROP when disabling tiling
  TJExample: Remove "underlying codec" references
  GitHub: Update to actions/checkout@v3
  TJBench: Set TJ*OPT_PROGRESSIVE with -progressive
  TJBench/Java: Fix parsing of quality ranges
  TJBench: Strictly check all non-boolean arguments
  TurboJPEG: More documentation improvements
  TJDecompressor.java: Exception message tweak
  12-bit: Set alpha channel to 4095 rather than 255
  TJDecompressor.java: "YUV" = "planar YUV"
  Java: Don't allow int overflow in buf size methods
  tjDecompressToYUV2: Use scaled dims for plane calc
  TurboJPEG: Numerous documentation improvements
  TurboJPEG: Don't use backward compatibility macros
  TurboJPEG: Ensure 'pad' arg is a power of 2
  ...

jversion.h.in

@@ -4,10 +4,11 @@
  * This file was part of the Independent JPEG Group's software:
  * Copyright (C) 1991-2020, Thomas G. Lane, Guido Vollbeding.
  * libjpeg-turbo Modifications:
- * Copyright (C) 2010, 2012-2022, D. R. Commander.
+ * Copyright (C) 2010, 2012-2023, D. R. Commander.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
  * mozjpeg Modifications:
  * Copyright (C) 2014, Mozilla Corporation.
- * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains software version identification.
  */
@@ -38,7 +39,7 @@
  */
 
 #define JCOPYRIGHT \
-  "Copyright (C) 2009-2022 D. R. Commander\n" \
+  "Copyright (C) 2009-2023 D. R. Commander\n" \
   "Copyright (C) 2015, 2020 Google, Inc.\n" \
   "Copyright (C) 2019-2020 Arm Limited\n" \
   "Copyright (C) 2015-2016, 2018 Matthieu Darbois\n" \