Log Message:
Updated mozjpeg to version 3.0.
Removed use of autotools and patched Makefile.in instead of Makefile.am.
Changelog:
* mozjpeg is now backward ABI-compatible with libjpeg-turbo.
  See 'README-mozilla.txt' for more information.DC trellis quantization
  (compression improvement)
* Merge successive DQT (FFDB) and DHT (FFC4) markers in a single marker
  (compression improvement)
* Deringing for black-on-white text
* Option to select quantization tables
* New cjpeg flag ?-version? to obtain version
* PNG input support for cjpeg
* Various other improvements from syncing with latest libjpeg-turbo code