Log Message:
Changes 2.2.5:

Security
* Double-free in gdImagePngPtr(). (CVE-2017-6362)
* Buffer over-read into uninitialized memory. (CVE-2017-7890)

Fixed
* Fix 109: XBM reading fails with printed error
* Fix 338: Fatal and normal libjpeg/ibpng errors not distinguishable
* Fix 357: 2.2.4: Segfault in test suite
* Fix 386: gdImageGrayScale() may produce colors
* Fix 406: webpng -i removes the transparent color
* Fix Coverity 155475: Failure to restore alphaBlendingFlag
* Fix Coverity 155476: potential resource leak
* Fix several build issues and test failures
* Fix and reenable optimized support for reading 1 bps TIFFs

Added
* The native MSVC buildchain now supports libtiff and most executables