Version stamp the distribution
 - MANIFEST.in: Add .hpssic_version, recurse down hpssic
 - Makefile: cleanup -- stray entries got added during a conflict, add
   precommit target
 - crawl.py: add crl_version
 - util.py: add dirname(), git_repo(),
 - setup.py: get version from .hpssic_version, deploy .hpssic_version
Have crawl provide README and sample config in installation