[9231] Update used utf8 cpp library version up to 2.2.4
treeb2c35418302abb1a95c02bbf4b407fb296ab617e
-rw-r--r-- 885 .gitignore
-rw-r--r-- 718 AUTHORS
-rw-r--r-- 17992 COPYING
-rw-r--r-- 47904 ChangeLog
-rw-r--r-- 1794 Makefile.am
-rw-r--r-- 4863 NEWS
-rw-r--r-- 2414 README
-rw-r--r-- 1806 THANKS
-rw-r--r-- 592 WARNING
-rw-r--r-- 9974 configure.ac
drwxr-xr-x - contrib
drwxr-xr-x - dep
drwxr-xr-x - doc
drwxr-xr-x - m4
drwxr-xr-x - sql
drwxr-xr-x - src
drwxr-xr-x - win