Move pgpool.spec to src/pgpool.spec.
Move pgpool.spec to src/pgpool.spec.

"make dist" does not include pgpool.spec unless it lies under src.

treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres