Log Message:
Update to 0.97

* Update HOMEPAGE and MASTER_SITES.
* Convert custom do-install taget to patch to Makefile.in.

Changelog:
version 0.97

  * Case insensitivity when responding to S/KEY challenges.  RFC1760 does
    not mention case sensitivity, but I've received a report of a server
    implementation that is case sensitive.  OTP behavior is unchanged.