Modify version string to post-release version 0.19.97
treee90c8e14bf6bf9a9f2c1b203bf16435e45a0cd4c
-rw-r--r-- 17987 COPYING
-rw-r--r-- 54 Makefile.am
-rwxr-xr-x 16389 autogen.sh
-rw-r--r-- 2097 configure.ac
drwxr-xr-x - data
drwxr-xr-x - po
drwxr-xr-x - src