Modify version string to post-release version 0.19.97
tree74c7ab9e9d0ea0f709c8cecbfa581877d3b2e723
-rw-r--r-- 17987 COPYING
-rw-r--r-- 54 Makefile.am
-rwxr-xr-x 16389 autogen.sh
-rw-r--r-- 1551 configure.ac
drwxr-xr-x - data
drwxr-xr-x - po
drwxr-xr-x - src