generated Makefile.in and configure files are no longer in Kawa repository

[Per Bothner]

Generated files like Makefile.in and configure are no longer in the Subversion source
code repository for Kawa.

The new top-level script autogen.sh should be run before configure.

The generated files are still included in the distributed kawa-version.tar.gz releases.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/