v0.5.2

unicorn 0.5.2

* Ensure responses always have the "Status:" header.  This
  is needed for compatibility with some broken clients.

* Other small and minor cleanups

Eric Wong (10):
      Explicitly trap SIGINT/SIGTERM again
      s/rotating/reopening/g in log messages
      before_commit and before_exec can never be nil/false
      worker_loop cleanups, var golf, and yak-shaving
      http11: default server port is 443 for https
      ensure responses always have the "Status:" header
      test: fix dependency issue with "make test-unit"
      GNUmakefile: small dependency cleanups
      unicorn/const: kill trailing whitespace
      unicorn 0.5.2