Adjust installed files

- Install some of the missing files.
- Avoid error testcase 27 (causes a segfault)
- Install the Kyuafile (needed to modify FILESGROUPS).
Import run_test.sh from byacc-20140715
Look for run_test.ok in the correct directory
Use the output files from byacc-20140715; remove all -D usage information
Skip over failing testcases (needs the latest byacc snapshot)