* src/3rd/zlib/Makefile
* src/3rd/zlib/*
* updated to 1.2.7 from 1.2.6. Using 3rdpatch.hb and .dif reapplied manually.
* src/rtl/hbzlibgz.c
+ HB_GZOPEN() updated to use new in zlib 1.2.7 wide gzopen()
on Windows. It means now it supports unicode filenames.
* contrib/hbmzip/3rd/minizip/zip.c
* updated manually from zlib 1.2.7 (two warnings fixed)