Log Message:
2.36.8:
* jpeg: restore grayscale image support
* bmp: Tighten image dimension checks
* ico: Fixo icon quality sorting
* Various other leak and overflow fixes
* Add some assertion to help static analysis
* Remove support for building on various obsolete platforms
* Translation updates

2.36.7:
* Add tests for recent bug fixes
* ico, bmp, tiff: avoid integer overflows
* jpeg: error out if wrong number of channels
* Misc.bugfixes
* Support mimetypes: image/wmf, image/emf
* Translation updates