Improve the performance issue on rescanning directories
Bug 73686 - confdir is not set correctly in fontconfig.pc
Update zh_hk.orth

Patch from Abel Cheung

https://bugs.freedesktop.org/show_bug.cgi?id=73461
clean up the unused files
Add missing license headers

https://bugs.freedesktop.org/show_bug.cgi?id=73401
Update the use of autotools' macro
Fix a crash issue when empty strings are set to the BDF properties
Add a doc for FcDirCacheRescan
Add missing #include <sys/statvfs.h> in fcstat.c

https://bugs.freedesktop.org/show_bug.cgi?id=74602
Fix incompatible API on AIX with random_r and initstate_r

https://bugs.freedesktop.org/show_bug.cgi?id=74603
Merge remote-tracking branch 'origin/master' into cmake